Rammstein just postponed their North American tour until 2022. Like many bands, Rammstein wants to play it safe b/c of Covid. This certainly puts a wrinkle in plans for sure but if you've already got a ticket, it will be valid for next year.
You can imagine all of the moving parts of putting a stadium tour together, ultimately safety is priority number one. As fans of live music, their is no lack of good news! Between now and the end of the year loads of bands will gas up tour busses and pull trailers filled with bad ass instruments so we can get back to seeing shows.