Alan Newman's suggested highs (Dow 8075, Naz 1375 if memeory serves) look fairly realistic now IMHO.
I would add that this rally appears to be discounting a peace scenario. So people may sell the news if that turns out to be accurate.
“The things that will destroy us are: politics without principle; pleasure without conscience; wealth without work; knowledge without character; business without morality; science without humanity; and worship without sacrifice.” Mahatma Gandhi