100% guaranteed. Russia will invade a neighbouring country within 6-8 years.Not really, they'll just rebuild and attack again in a few years. In Ukraine or elsewhere.
Putin has said many times that the fall of the USSR is the greatest tragedy of the 20th century. His dream is to return Russia to it's former "glory".
And now that Trump effectively neutered NATO, it's a only a matter of time until Russia tries it again.
For someone who claims to be a master of dealmaking, it sure seems he gave away everything to Putin in the first phase of the negotation...