The good news is that there ARE cards of an Olympic baseball team this year - the Korean team! SCC issued their second set of the season earlier this month called KBO Golden Premium. The base set contains 212 cards which includes a 22 card Korean National Team subset. The remaining 190 cards are split between 100 "rare" cards, 45 "etching" cards and 45 "holo" cards - I assume it all works out to 19 cards per team but I don't know that for sure. It looks like 180 of the 190 players in the set have an autographed card and there are also jersey and/or patch cards. Boxes can be found on GMarket for between $60 and $80 and are guaranteed to include one autograph and one jersey or patch card. Dan of Korean Cardboard has details along with promo images in this tweet. As far as I know, these are the first cards EVER for a Korean Olympic Baseball Team and only the second Korean National Team cards ever produced by a Korean company (and first since the 1999 Teleca Premium "Korea Dream Team" insert set).
And finally, the first announced baseball card set for 2022 is BBM's annual ultra high-end Glory set, due out in late December (but with a "cover date" of 2022). The details of the set seem similar to those of last year's set. Each six card box retails for 18,000 yen or $160-ish and is guaranteed to include "two or more premium inserts including one or more autographs". The base set has 36 cards of active players - I'm assuming six cards per team but I don't know that for sure. There's a parallel version of some sort for each base card. There are two insert sets - "MIYABI" which has 36 cards (I assume the same 36 players as the base set) and "Glorious 3D" which has 12. The "MIYABI" cards are numbered to 50 (and there's a parallel version with a smaller print run) while the "Glorious 3D" cards are numbered to 25. There are a wide variety of memorabilia cards including jersey, "super patch" and "grip end". There are also memorabilia cards featuring jersey swatches from two, three or four players.