Yes it still can be an All time opener, buzz is definitely more than the likes of Race3/Dangal at the moment and those were 30cr openers on nonholiday.
Though Dangal buzzed at high level during release week due to incredible pre release reports.
Then comes Sanju and TZH, it was definitely bigger than those movies after the trailer but it's badly lacking good music, ghungroo is a downer and yrf is repeating same mistake after toh they need to release songs. Toh had a bad reception for trailer and music and it still opened to 45+, I expect the same for war considering trailer got far better response and also nett ATP will be more than toh.
At last A real Chartbuster can easily turn up the table and push it towards 55.
I still think 50+ is confirmed and it has legs to go beyond 55 if a Chartbuster song comes.