Well, even though I have always been a Hogan supporter as he - of course - was one of my favorites growing up, I was (and still am, to an extent) worried about his plans with TNA. I mean, so far, nothing too bad has happened; so we got to see Out-Of-Shape Hall and Out-There Waltman appearing every week without purpose, and we got the Nasty Boys that no one really needs. But Armageddon hasn't fallen upon TNA yet.
Now with Hogan wrestling, it's a double-edged sword. Now as a one-time attraction, it is a good thing. But I agree with someone who posted above that it should be saved for a PPV event, and should have a much longer build-up. It should be made out to be something HUGE that The Hulkster steps back into the ring, and there needs to be a very believable, very important story behind it, instead of just tossing him and Flair into a more or less random tag match on a weekly show (even IF it is done only to snatch a few ratings points from WWE when TNA really goes head-to-head). But as said, basically I have no problem with Hogan and Flair going back into the ring, under two conditions: A) It should be a once-in-a-while thing, and B) it should NOT be in the Main Event match (if it's a PPV; on a weekly show it can be accepted I guess).
Now we all know that despite Hogan not wrestling thus far in TNA, he has been featured in quite a prominent role on TV, coming out every week and cutting promos, being involved in several feuds in some capacity... now of course Hogan likes to be the center of attention, and it shouldn't surprise anyone that he plays a major role; he just isn't the type to take a real backseat. But compared to what we know of him, and what we had expected from him, we'll have to admit that so far, he's really not done anything that hurt TNA in a major way. One point that could be raised is that Hogan and Bischoff have been hiring too many WWE rejects that no one really needs (like Val Venis or Orlando Jordan), since TNA has already sufficient talent who have the same level of popularity (or lack thereof) as those two guys, but who are at least over with the TNA crowd and who are also great workers; but other than that, Hogan's been doing "OK", I'd say.
Now with him getting back in the ring, the point that was raised with him raising claim for the TNA title is a legit one. For someone like Hogan, who has essentially been main eventing since 1984, and who has almost always had some kind of gold either around his waist or around that of his opponents, it must be pretty hard to take a step back and refrain from wanting to win the title "one more time". Especially in this current constellation, where power lies even more directly with him than it already was the case in WWE and WCW before by way of his "creative control clause" (and this time, he doesn't even need that anymore - Hogan IS creative control this time around), it should be very tempting for someone like him to say "Oh well, I guess a month's reign for the good ole Hulkster can do no harm, and my name value adds to the title's prestige anyway, brother".
Now I just hope it really never gets that far. Right now, from the looks of it, it really seems that he plans on keeping the main attention on the TNA boys still, most noticeable on AJ, who is more than deserving of it, but you just never know what will happen sometime down the road - especially if the Monday Night War doesn't go too well for TNA, and Hogan might see himself forced to "resort to desperate measures" - which may lead to putting the title on himself. And despite him holding back thus far (and honestly, "thus far" isn't exceptionally long yet, either) looks quite good, there's still always a danger of that happening.
I just hope that Eric Bischoff is smart enough to whisper the right things into Hogan's ear (and that Easy E is also smart enough to know what the "right things" are) and that TNA continues to focus on their own talent and build new stars - since they have a great potential right now with formidable upper midcarders who all have potential to be main event players such as The Pope, Desmond Wolfe and of course Ken Anderson, who has really been impressive to me over the past couple of weeks and who has really shown once again why he was considered to be "the next big thing" for such a long time already. If he stays healthy this time, I see him reaching heights that few other wrestlers reach (and which most likely will ultimately see him return to WWE once his time is due, if everything works out; but for now, he's one of TNA's most valuable assets), and TNA should really focus on that.
Hogan was already too old to permanently main event fifteen years ago, but thanks to the nWo angle, they somehow pulled it off - even if it worked only for so long. But now, the popularity of his heyday is more than faded, fans of today don't even remeber Hogan for anything else than painful matches against HBK and Randy Orton, and his body isn't up to any more abuse. So I hope he realizes that the things he preaches week in and week out in his promos are actually TRUE, and not just empty phrases used to somehow win the critical TNA audience over to his side.
That being said, I for one don't think Hogan will win the TNA title, let alone hold on to it for a longer period of time. But knowing Hogan's history, I will and can not rule out the possibility of him scoring a win over some champ sometime down the road, and add "one more title" to his resume - just to satisfy his ego. However, I hope that doesn't happen and that Hogan has indeed learned his lesson meanwhile.