>>721187637
They made three Sly games. You got a full trilogy. They've outright said "we're happy with what we did with those games but it's been two decades and the team has overall changed and Sly doesn't align with what we want to work on".
>then give the IP to another studio to work on
They DID. That's what Sly 4 was.
Sometimes a series just ends, man. It got three games, they moved on, it got a revival by another studio and then ended. Would you rather them be working on Sly when they don't care to work on Sly, and zombie the franchise for another 10 years?