Answer:
It could have possibly happened, but most likely not.
Step-by-step explanation:
The key figure of the revolution was Vladimir Lenin who was in exile during WW1 and the Germans specifically sent him back to St. Petrograd to cause political instability and bring Russia out of the war. If WW1 did not happen then Lenin would have not gone back to Russia and the White Army also could focus on suppressing Communist uprisings. The monarchy was still very weak but would remain in power. The democratic reformers would try to change Russia through peaceful protest rather than violent uprising.