Belarus: I could see CPB taking over when Lukashenko isn’t in charge anymore.
Burkina Faso: Their prime-minister seems to be a communist. Hopefully this means working towards a socialist state.
Cyprus: AKEL is one of the main opposition parties in Cyprus and their candidate for presidency went to the runoff election this year.
Greece: KKE is one of the main opposition parties and they keep growing.
Haiti: There are some revolutionary organisations involved in the protests against the government, maybe they’ll succeed.
Swaziland: The CPS is the main opposition to the king’s rule.
Taiwan: through reunification with PRC.
What others seem likely to you?
EDIT: I remembered South Africa is a candidate as well, the EFF is getting stronger
the KPRF is full of old bureaucrats who would surprise me if they had a communist bone in their body. Perhaps if the upper leadership is purged, but that is unlikely.
There is a nonzero chance of a socialist movement being truly revived, Russia cannot hide from its past for long.
