You have the top 6 (BZ, TW, FL, MJ, LM & JD) plus Lambert, Kasprzak, Berntzon & Zagar. 6 + 4 = 10.
Sayfutindov has had a poor GP year but was in with a shout of title going into the last round of 2019 and top of the Ekstraliga averages. Artem Laguta can be unbeatable on his night, quickest rider in the world if he hits the front, 2nd in the Ekstraliga averages in a team that has seriously under performed. Fricke is young, was poor generally but won a round deserves another year.
So it's basically 2 from Anders Thomsen (Danish Champion), Grigorij Laguta (6th in Ekstraliga averages, 3rd in SEC) or Martin Vaculik. Covid could play a huge part in this, if there is likely to be a Russian GP or a Danish GP then that might edge it for rider from that country. I gave up looking at the state of Covid infections around Europe once my last holiday was cancelled.