Not spoilering since it's been over a day now...
Anyway, I was so worried it wasn't going to be him so I'm glad it was. I love how Majors played it too. Unexpected, but it felt right. Really interested in seeing how he does other versions of the character. I think the first "real" appearance of Kang is supposed to be in the next Ant-man movie I believe? Looking forward to it.
With Renslayer taking off with a bunch of stuff, I kind of wonder if she isn't going to take on her more traditional role from the comics and be in a constant love/hate relationship with Kang and try to overthrow him an rule time in his place. Really don't care for how the episode ended so abrubtly like it did, but at least we know it's confirmed for a season 2, so that relieved the annoyance slightly. Was a nice set up for the next show releasing too I guess. XD