It's interesting how Cody's career is somewhat mirroring Dustin's... big initial push based on their lineage, then singles success with midcard titles... then a 180 persona that "brings the weird" revitalising what was destined for a dull career.
When Dustin became Goldust, there WAS a chance he could have gone all the way with it, but WWE was 2 years ahead of it's time there...There is nothing to say that the Stardust persona couldn't see Cody get there one day but when WWE took the somewhat valilla Dustin Rhodes and first showed him the costume and gimmick no one forsaw what it did become...
For those who are younger or maybe don't quite remember the timeline... Dustin Rhodes debuted at In Your House 4 in October 1995... That's nearly NINETEEN YEARS AGO!
There have been odd detours into his own name, Seven/Uncle Fester, that awful TNA gimmick... but Goldust has worked as a character for the majority of 2 decades and been a staple of the WWE. Never in the main event or very rarely, but he has always been a featured part of the roster.
Cody has now been in the WWE for 7 years now, his debut was July 2 2007! In that time he has as several guys have alluded to had a few gimmicks, but not one has failed. He has been able to make the best possible out of all of them. Many preferred "Disfigured" Cody and that was arguably his best chance of the main event till now... but even then he hasn't really had the push to match the effort he has put into each gimmick. They've blown hot and cold with him...
So the reality is if they were serious about him, it would already be over... he'd have had the Miz's run or ADR's or Ziggler's... they're not looking for a Rhodes to carry the company. Just as they weren't looking for Dustin to... or their dad in 1990... Cody is a smart guy, he will have seen what has worked for Dustin and given him the longevity.
Some of the parallels are striking, Cody is newly married and his wife is an on air talent... so was Dustin with Terri/Marlena... Stardust is not just the "partner" of Goldust, it's the replacement... Cody can work this gimmick for the next 10 years, he's good enough to and once Dustin does go the fans will be glad there's a "Dust" there. From WWE's perspective he's a more PG version of Goldust (who is now so toned down it's almost a shame) so they can keep the colourful, toy friendly character but not have some of the overtones that Goldust has always had.
There is no way they should fight each other now... It will do nothing for either... but a BIG tag team match at Mania next year or my pick the year after in Texas, perhaps with Dustin's career on the line would be perfect for both guys... Dustin gets to go out "on top", WWE gets to rejig their "mask record" idea for facepaint.
The Stardust character works on many levels... it can be a kid friendly face or a Joker-esque villain (tell me you don't see that when he smiles after the star hands) for the future. Cody is clearly invested in it as he has changed his moveset, gestures and basically created a totally new alter ego. If it was short term he'd not be as invested as he appears to be.
From Cody or ANY talents perspective, it's clear that WWE is stiffing them on PPV revenue, so merch becomes more important than ever. Cody couldn't really sell shirts but Stardust can sell shirts, gloves, masks/facepaint, action figures posters...
He's not likely to main event... but... it's not impossible.
Personally I would let Eden be his "valet" and add her to the team. Keep Dust 2 Dust teaming for the next 2 years and let Dustin go out the loser in the end, but hand the "mantle" over to his brother. If he can do 10 years of this, main event or no then in todays WWE that means you're doing something right and are gonna be well paid.