I am rather curious to see if Ame and Kronii play up the time traveler and time keeper aspect much, won't hold out for anything, but with Ame's creativity they could certainly have some fun with it. Regardless the Hololive fan artists are doing a great job of making cool/funny art about them, and expect there to be some fan manga and other project in the future too.
Something I've been thinking about for awhile now, is that one of Ame's gimmicks has been all her alternate timeline versions and how they all seem to know about and help each other, most seem to be able to time travel as well.
My first RRAT: Ame is actually Hololives "Kang the Destroyer" and after a decade of build up will be revealed to be the ultimate final boss of "Hololive Alternate"