In 1996, I started a Web site called MacSPORT because I couldn't find any. Then I started the MGDB just to keep a master list of all games, sports or not.
As for upcoming EASports titles, none have been announced. Aspyr brought Madden 2000 to the Mac, but they were apparently disappointed with sales. They subsequently announced Tiger Woods golf, but then that got shelved.
Your best bet is to contact Aspyr and tell them you'd pay money for a sports game. MacPlay is another publisher that might consider a port, though they have a better relationship with Interplay than with EA.
Yeah, a British company (Gremlin) coded a Mac soccer game (Actua Soccer) back in 1996, but then the American publisher (Interplay) had financial problems, and it was one of the titles that was axed.
It was going to come out over here as "VR Soccer", but finally the only way you could obtain it was with a Techworks 3Dfx card. I bought one, at the time, and so I had it. At any rate, it was a pretty good game. But that was the first and last time Gremlin attempted a Mac game, even though they had announced a couple of other titles as well.
But it sucks, because with a proper release, and with proper marketing, a soccer game could fly.
Me, I'd like to have a decent baseball game. We DO have Strat-O-Matic Baseball, which is the equivalent of Championship Manager, but it requires a key diskette that doesn't work with most external USB floppy drives, so it's a pain.