Thoughts on the BFDI x Regretevator Collab

I think that since a new BFDI themed floor is being added, a challenge in either BFDIA or TPOT should be like Regretevator. Which one it should be IDK. BFDIA 18 will probably release closer to February 1st, but the new floor is TPOT themed, so... You're thoughts on this?