Just added to the wiki. Offer on personal Plat today: $500 or 50k MR points; took the points. No spending requirement. Last retention deal was two years ago. Spent around $60k on the card in 2018. Nice deal.

No such luck with the Business Plat - no offer. I had spent only about $1k in 2018. Had a retention deal two years ago on that, too. Cancelled the card now that I've gotten my $200 airline credit for Southwest gift cards. I'm guessing my Gogo passes will still be good, but we'll see.