while recall elections were the main viable option in the analog scenario, compared to the digital alternative of amending votes they might bring along more logistics in terms of gauging when such a recall voting round might be warranted (edit: on top of making the electorate reiterate their stance in such a recall round).
that seems like one option - given candidates with both sufficient mandate as well as sufficient time remain available.
another might be to settle for simply un-electing from the representative body candidates that lose the required share of votes.
either way, at some point a new election round (allowing new candidates to participate) may be warranted (edit: e.g. either once the term expires or once the number of representatives drops below some threshold, whichever comes earliest).
while popular digital voting systems tend to finalize results, one area that seems more likely to have implemented such mechanisms may be liquid democracy ones, tho i’m not really finding a lot of popular implementations out there. to be fair, i think the main reason the traditional digital voting systems would finalize results was their decryption process involving trustees (as used in e.g. Helios).