They are likely to hold the vote as soon as possible and use the “Tennessee Option” to send a delegation to demand seating. I suspect they have the candidates already planned out.
The “Tennessee Plan” is the brainchild of former state senate president Charlie Rodriguez, but it is a gimmick to obtain publicity, not a serious attempt at seating members of Congress. PR would have to hold elections for the House and Senate after Congress votes to admit PR as a state but before the effective date of admission.