I see the nato secretary general is floating some interesting ideas for getting Ukraine into nato.
None of which I think will happen though
The first thing is to do away with the mandatory action plan and give Ukraine a fast tracked invitation like Finland and Sweden. Biden says he likes this idea, Indont think everyone will though
The second idea from the general will be much more controversial - currently it would be impossible to admit Ukraine because they are at war, so the idea he had was to change article 5 in a way so that countries in conflict could still be admitted without bringing nato into the conflict. This would be unpopular for various reason but I guess one of the main ones is that it would weaken article 5 and therefore weaken the protections afforded to smaller members. For example you may need to change article 5 to say that nato can only go to war if all members agree, so even if one member is attacked that member can't force nato to go to war under article 5, all members could vote to do something or do nothing - this would make the bigger members in a future event not want to help smaller members unless it benefits them
But with such changes, in theory Ukraine could join and other NATO members would not be at war with Russia. What might happen though is that Ukraine agrees to a line in the sand with NATO and if Russia crosses the line then they could vote on article 5 to do something or not, NATO might also choose to station its own troops within the conflict free part of Ukraine on the nato side of this line, while ukraine and Russia fights on the other side. Again I really don't see members agreeing to this