Yooka Laylee is the only game I've ever put money towards on Kickstarter, so definitely that one!
Banjo Kazooie is probably my all time favorite game, so I'm curious to see how much I'll enjoy this one. I tried playing Banjo Tooie fairly recently for the first time and I just didn't like it half as much as the original, but that was because of some specific and hopefully avoidable issues (levels being excessively huge and hard to navigate, and bloat with the number of new and old moves you're suppose to remember split between Banjo+Kazooie/Banjo/Kazooie).
There are a lot of other Kickstarter that I've got my eyes on, but everyone else is covering those pretty well. That Rain World game looks especially amazing.
YookaLaylee in theory is a fall game, but there hasn't been much seen of it past the initial campaign. Nothing concrete to get excited about yet.
I kinda doubt it will come this year. One of the Kickstarter rewards was a kind if prototype demo level and there hasn't even been a mention of that coming out, let alone the FULL game coming out in 4-6 months.
Really hoping we hear something around E3 time.