I've always liked the flash client, it's good to keep it, I think. A proxy could also help those people who are behind a firewall at work.
As far as waning interest here, it never quite felt like it was booming anyway. Change, of any sort, could be good. I know that I personally stopped visiting for several weeks, though I kept an eye out on the RSS feeds. Turns out, those feeds were defunct and a visit to the site showed a few new comments I hadn't seen on my toolbar. Since then, I haven't bothered with re-adding new feeds. If you plan to revamp the site, I'll have to do that.
While I appreciate the sentiment that comes with catering directly to the gamers themselves, I wonder now if that might be a bit flawed. Consider: The most active people in the text-based gaming community seem to be the creators, or would-be creators, of those games. Sure, there are exceptions to the rule, but for the most part, Gaming Creators (henceforth: GCs) are more likely to visit other sites in search of new content to feed the flames with. Players, on the other hand, seem to visit sites they are aware of and spend more of their time on the forums of their favorite game than say googling for other social sites.
If the above is true, then creating a site that caters directly to the player is possible, but you would have to give more control to the game creators than usual. An example of this would be sub-forums, or specialty forums. You could link directly from the game's website to a sub-forum here. By giving moderation powers to the GCs, you could effectively provide both the GCs and the players a service at the same time without effectively creating a larger moderation problem for yourself. Of course, you need to be careful and hold the GCs legally responsible for the posted materials or you could find yourself surrounded by strange men in suits, one holding a gavel.
Other means of course are possible, but I'll leave you to ponder that for a bit. If you are interested in more ideas, just ask us, I for one have more and I am sure your core (small though it may be) of GCs would willingly help out as well.