RoS could gross zero dollars (BTW, I believe it passed $500,000,000 globally already) and Disney could (and would, eventually) spend a moon-sized sphere full of cash on the next Star Wars movie.I'll predict that RoS makes back its own expenses (and provides the management team with a nice bonus check) plus some, but will not provide the next Star Wars movie with an adequate cash bankroll, ready-to-spend.
Disney had %80 of the top-grossing films of 2019. They could bankroll an aircraft carrier, if they chose to (umm, and the government agreed to sell one). Rise is underperforming because it‘s expected to challenge the top box office performers of all time.