I dont know when Kaby Lake desktop processors are coming out, youll have to look that up. I believe q2 2017 but I may be wrong
Honestly I don't think Kaby Lake is going to be worth waiting for. It will be like the Devil's Canyon update to Haswell - only a marginal improvement on an existing platform. If you're buying a new rig it won't make any difference between going with Skylake or Kaby Lake.
Which components should I look out for the upcoming weeks without having to worry about the components getting outdated? I was personally thinking a case, storage, RAM and a PSU. So what do you guys think?
Things that will get discounted: Storage (HDs, SATA SSDs), RAM, some cases (mainly in the $50 - $100 range), monitors, maybe some power supplies.
Things that won't get discounted: CPUs, high end GPUs, decent quality cases, and any high end power supplies