flop or a billion?

Flop. It's five years too late.

I thinnk it will be average we do knnow Florence Pugh and David Harbour will outact scarlett johansson

I'm sure all the marvel dummies will flock to see it in the first 2 weeks and then it will fizzle out. Itll probably do over $70 million the first weekend and then who knows after that. I think that the box office will stop having major success with these other marvel movies, now that the original arc has finished. I'll probably watch it, but I'll wait for the disney+ release. Hell, that's where I saw endgame. Thanks Verizon.

This is the movie that should have come before Endgame, not Captain Marvel. It would have given Natasha's death more heft. She definitely been the best female character in the MCU.
I can see this making 1 billion. The thrill of the MCU is still alive, despite the apparent "wokeness" of some future projects.
As for Phase IV, MCU/Disney needs a few big hits. Nothing in that slate is especially appealing, save for this and the second Doctor Strange movie, so Black Widow has to be good.

Captain Marvel type figures , just depends on this corona outbreak

I think a billion as the virus will be more over and people will want to go outside by the time the movie comes out.
https://uk.reuters.com/article/china-stocks-midday/rpt-china-stocks-rise-as-new-domestic-virus-cases-drop-xis-wuhan-visit-lifts-mood-idUKL8N2B30GN

700 million, or so global.

Pure speculation, obviously. I don't think Widow will have quite the appeal that Wonder Woman did.

A flillion.

It's a quantum superposition of both flop and a billion.

Let's call it Schrodinger's Spider.