I doubt it's old Vlads' plan to go to war with NATO, but I think the dynamics of the situation he was looking at 12 months ago have changed, and in a way that's (almost) diametrically opposite to that which he wanted to create.
There are two separate situations that he's trying to change:
the first is the loss of 'buffer states' between Russia and NATO (and in Putin's view, those buffer states should be Russian buffers; friendly to Moscow, with their foreign, defence and economic policies both alligned with Russia's, and set by Russia - not sovereign, independent states with the right to set their own policies and decide who their friends and partners are).
the second is a more emotional, visceral, nationalistic issue, that of Ukraine. Putin simply does not believe that Ukraine is an independent polity, he believes it to be an inherent possession of Russia.
Unfortunately for Vlad, he's spent the last year using state media - or, media- to persuade, apparently successfully, the Russian population that a) NATO is about to attack Russia with a vast Tank army, filled with homosexuals and other deviants who will burn the Othodox Church, and Russia's cultural heritage, to the ground before 'converting' good Russians to their unholy practices, and b) that Ukraine is the homeland of Russia, and that it's recovery is not only desirable, but utterly necessary to the existence of a sovereign Russia.
He probably won't attack - physically - a member state, but the Swede's and the Finn's are digging in like they expect him to have a go at them before they join NATO: Sweden has effectively militarised the island of Gotland in the Baltic and held emergency reinforcement exercises with the US and other NATO states, while Finland has started some of its dispersement procedures, activating reserve units, going to a general higher readiness - and interestingly, the Finnish president spent half his new years TV address talking about how Finnish membership of NATO is a matter purely for Finland and NATO, not Russia. Finland has also just decided to by 64 F-35's to upgrade it's air force....
I think it's coming: Vlad has backed himself into a corner, and his window of opportunity is closing, fast.