Air wars do not end in draws. They are different from soccer in that respect. Either Russia will be able to continue with their aerial civilian bombardment of Ukraine (Russia winning) or the aerial bombardment will be suppressed (Ukraine winning....regaining control of their air space).Personally I think the air war will continue to be largely a no-score draw. Both sides have sufficient air defence to deny control of the air. Would need a lot more committment from NATO to change that.
But I think Ukr will win the war of attrition in the ground. They have more committment from population, NATO production and better morale
If Russia wins the air war, and they are currently winning, then Ukraine will be brought to the negotiating table. The attrition is not happening at the front, it is happening to the supply chain behind the front line and the morale of the civilian population being bombed. Ukraine will be forced to permanently concede most of Crimea and a large part of the Donnbas etc.
If Ukraine wins the air war by creating their own "iron dome" and suppressing the aerial bombardment then yes, Ukraine's massive ground superiority will eventually overwhelm the Russian ground forces. Putin will likely be given a face saving gesture but essentially Russia will be kicked out of Ukraine.
At this stage, it is ALL about the air war.