Everything over 50 years old qualifies. Every year there's a new game. Qualifying milsurp stuff is at a lull, but when something great happens, it's nice to be ready! Last neat thing for me was adding the P-64s (that was unexpected). Coming soon will be the CZ70s as relics, and perhaps the rest of the makarovs as curios. I think there's much to look forward to. This thread of yours is kind of proof that, even this late in the game, you could benefit by having a C&R FFL....
Here's an afterthought: Maybe it's a good idea to get a C&R FFL while you can. In this world of changing attitudes, FFLs of all types may be harder to get and grandfathered benefits would be nice to have. Just sayin'.