Two new parties are set to enter Greece’s political landscape within a week, triggering speculation about whether they will cause a major political upheaval or only limited disruption. Former prime minister Alexis Tsipras, and Maria Karystianou are both seeking strong debuts with leader-centered political movements that could reshape the competition for second place behind the governing New Democracy party.

Tsipras is aiming to reunite left-wing voters while also appealing to centrists. Karystianou – who had led the Tempe rail disaster victims’ association – appears to draw support from anti-establishment voters as well as more conservative and right-leaning audiences.

For the governing party, a struggle between PASOK and a Tsipras-led party for second place could ultimately prove beneficial. Such a confrontation could trap both parties in low double-digit support levels and push undecided voters back toward New Democracy while they wait to see whether a viable alternative emerges.

PASOK now faces pressure to show whether it can maintain the support it has gradually built and whether it can expand despite growing competition. Party leader Nikos Androulakis is targeting center-left and centrist voters.