Guardians 3 will do more $ than TROS
Guardians 2 did about 900m in 2017 and wasn't even that good but after Endgame MCU is bigger than ever (Far From Home gave Spidey his first 1b movie) and GOTG3 will be following on from EG more than other MCUs as its all space fantasy like EG so will do 1b easy probably alot more like 1.3-1.5b (especially if Thor be in it too)
Its just funny to think the 3rd in the series of a SW knock off and a film no one thought would come to much in 2014, is obviously going to outgross the 3rd SW sequel/wrap up of the entire saga!
Its like Star Wars has become the Star Trek to MCUs Star Wars!