Yes and no, it all depends on what happends in the PSV game.
However Dost has already said he won't play "to be sure of not getting injured considering a possible transfer", even though he has the chance of breaking several scoring records. The only way Heerenveen is sure of going into Europe is to lose against Feyenoord.
A draw will mean that they might not qualify automatically considering AZ and Twente are on their tails.
No No! This is simply not true. This is the scenario:
Winning is the best scenario, followed by losing and a draw would be the worst scenario for Heerenveen. I've seen that I made a mistake myself. If they win and both PSV and AZ win they will have QR3 and not QR4. It's quite complicated. Or not? I don't know it anymore.
Worst case scenario for Eredivisie:
PSV wins, Heerenveen wins, ..... If FC Twente then wins the Play-Offs, the Fair-Play ticket will go to Excelsior and the Cup ticket will go to Heracles. This gives:
CL Q3: PSV
EL3: FC Twente
EL1: Excelsior -> And they will relegate
Best case scenario (one possible example): Heerenveen loses, AZ and others all win. Then Vitesse must win the EL Play-Offs against FC Twente and others.
CL Q3: Feyenoord
EL1: FC Twente
I hope for the worst case scenario