It's hard to say we're in a golden age for fighting games when so many series are in their graves and unlikely to be dug up. Darkstalkers is probably never coming back, as Capcom teases it endlessly to gauge interest in mediocre releases and then cancels any attempt to make a sequel based on bad sales for a bad game. Project Justice will only at most get merged into Street Fighter the same way Final Fight was due to it having no big name characters that the casuals can name. The rest of Capcom's forgotten list (Red Earth, Cyberbots, Plasma Sword, etc) has very little chance of revival.
SNK is reviving some series, but at a slow pace. Garou is coming back, and Art of Fighting might be next, but there's no guarantee for the multiple others that ended 25+ years ago.
There's a possibly of Eternal Champions coming back with Sega's new retro initiative. That, of course, has no evidence yet.
So if we ever get back to the same level of popularity and output as in the 90s, then would could call it a golden age. For now, we're missing a lot.