Last day of the sale advice / recommendation?

Hey folks, Ive picked up a few titles in the current sale (TSW 2020, Phoenix Wright and CTR) but have been umming and ahhing over making another purchase before it ends.

Wondered if anyone has any recommendations - I'm always a little gun shy because I have Gamepass ultimate until mid 2022 and thus want to avoid buying any games with a high Gamepass probability. The two titles Ive been considering are No Man's Sky and Frostpunk.

Frostpunk is right up my alley but not a deep discount, and No Man's Sky is a great price but I wonder if I have the room for another game like this. I feel like there's a few similar titles on GP already.

Does anyone have any final date recommendations or thoughts for a GP user?

Thanks :-)