Can we already make a list of drivers that will definitively be present in the big czech championship this year?

I presume that fllowing drivers will be present:
Pech (Evo Change to R4 during the season?)
Valousek (Fabia)
Kresta (Fabia?)
Petak (207)
Tlustak (Fabia)
Cerny? (Evo?, Clio?, Fiesta R2?)
Stajf (Impreza)
Behalek (Impreza)
Orsak?