It can happen but that means that ROH is going to have to become more of a "sports entertainment' company instead of mostly a "pure wrestling" company.
I've watched ROH since it was taken over by Sinclair Broadcasting and the wrestling action is usually solid, but I've yet to really see anybody that comes off as a charismatic superstar. There are a ton of guys in pro wrestling that are great inside the ring, including ROH, but it's ultimately the guys that are able to connect as characters to viewers that are the most important aspect if you want a wrestling company to grow.
ROH's ppv events being available only via the internet is another problem as they've regularly had technical difficulties that've prevented people from connecting to purchase the event or they've been unable to maintain connection due to difficulties after some have already paid.
I don't think that ROH is generating a ton of viewers via syndication, otherwise you'd most certainly read articles reporting it and articles in which ROH & Sinclair are bragging about their success. Whenever I read reports of alleged ROH house show attendance, their less than 1,000 much of the time. So are TNA house shows for that matter. So, if those reports are accurate, then ROH has a long way to go before they can compete with TNA in ratings. ROH has a syndicated television deal that broadcasts episodes at various times & various affiliates throughout the week while TNA has a steady network deal that airs their programming in prime time every Thursday.
ROH has long been thought of as kind of the unofficial Kind of the Indies and that's something of an image that guys like Jim Cornette have cultivated. Cornette has a very old school mentality that he's allowed to get in the way more than once in his career. Cornette feels deep down in his heart that wrestling should still be run like it was back when he was a young guy first getting started in wrestling. It seems that the vast majority of fans don't seem to agree, resulting in ROH having more of a "cult following".
It doesn't help that, usually, most of ROH's top stars eventually head for greener pastures whenever WWE or TNA come calling with much more money than ROH is capable of delivering. If WWE made a serious money offer to just about anyone currently on the ROH roster, whose contract was close to expiring, most of them would jump ship at the chance for possibly being a bigger star on a bigger stage for much bigger money. Until/unless ROH is able to compete with TNA from a financial standpoint, then they will remain Kind of the Indies.