Article says "advisors", so its gonna be a mix of special forces doing front line recon/spotting with limited fighting, instructors for the wizz bang shit, maintenance crews for the wizz bang shit, and more liaisons for intelligence/logistics between Ukraine and EU countries.
Not enough for front line fighting or reinforcing the rear. Nobody's going to commit to large scale troop deployments until after the USA elections at the earliest, probably just hoping REALLY HARD that something unexpected happens that drastically changes the painting already splashed on the wall.
I wouldn't be too sure that AFU can hold on for another six months. Once the collapse starts it accelerates very quickly. We may be in the early stages of this right now. The panic in western media suggests that the situation is very bad for Ukraine.
Elections in November and the new President takes office in like... January or something? (Don't ask me, I just live here, I'm not great at USA civics.)