I may be mistaken, but it's not so simple that the $2,000 will pass. It would need 60 supporters to pass it, and if they do it with the extended rules, which take longer but allow for a 51 vote majority, it can still be filibustered if there are no 60 supporters.
Until now, only a handful of Republicans openly supported it, and that included two that are not going to be in the next senate.
However, the Republicans have probably learned their lesson about the optics of opposing the checks, and some will probably back down. They definitely won't want the drama playing out of them filibustering such relief.