I'm hoping Gambit isn't dead and that it's only being made to look like it until it's revealed that he's survived but just really badly injured. Narratively, it doesn't make sense for Rogue to finally choose Gambit over Magneto, just for Gambit to be killed off.
I wouldn't mind if Magneto was actually dead because, without Xavier, he's not really got any purpose. If he is, they did kind of gloss over his death rather quickly.
Probably an unpopular opinion, but I'm kind of finding Rogue a little bit annoying. She was one of my favourite characters in the original animated series, but in this series, the "love triangle" has made her a bit of a *****. Whilst Rogue/Magneto was a thing in the comics, in this series there is no reason for her to be all doe eyed over him all of a sudden, just for there to be "drama" in the Rogue/Gambit relationship. It doesn't help that she's drawn younger looking than she was in TAS but then the reveal that Magneto hooked up with her when she was even younger pre-X-Men days, it just looks like he took advantage of her. Her casting Gambit aside after he's been loyal to her for years, just because she can touch Magneto, Gambit deserved better. Also again, just because she can touch Magneto doesn't mean that she should suddenly go gloveless because there were still lots of people on Genosha that would be affected by her powers. Also holding Gambit with no gloves, when he's severely injured at least, could kill him if his injuries haven't already.
The series is good and episode 5 has definitely been the best episode so far, especially the Genosha attack scene, but the characterisation of Rogue has not been my favourite.