I hope you're right. There weren't any breadcrumbs in this episode that I could see. I'm still hoping for an Apocalypse/Horsemen cliffhanger at the end of the season at the very least.
As for this episode, there wasn't much for Rogue fans, but I did like the Wolverine & Nightcrawler fighting the Prime Sentinels scene. I also appreciated how they're promoting the sibling relationship between Kurt and Rogue.
So, is Val Mystique or not? It was the perfect moment for a reveal, but it didn't happen.