Sometimes I'd love to look up a particular train in the museum. It's still easy to switch between train eras. But scrolling is crappy since WebGL. I'd love it if you could include a search engine. It would be handy to check which trains you've got from those level contractors (like Zack - how many variants of his Levitas maglevs do I own and which are missing) or when looking for those cool train engines from Steamtopia, Dieselpunk and all the other specials!
Oh yeah, while I'm at it, will there be a special Museum Hyperloop reward? After all, there is one for most other eras!