In regards to profitability, the number is actually much closer to needing to hit $500M than not.
The "production budget" is listed at $165M. But that doesn't include a major amount in advertising, reportedly at least $100M (remember when their Super Bowl ad had nothing from the movie, and we all thought that was a bad sign?), printing film reels / digital copies, marketing tours, etc.
So the actual money Disney has spent is at least $275M, probably closer to $300M. But M&G's worldwide take is already $246M, so no problem, right?
No, people forget that the amount reported is ticket sales - but the theaters themselves still take a cut of the ticker revenue.Historically in the US, we'd see splits like 80% of Week One goes to the production company (20% to the theater), 75 or 70% to the producers in Week 2, and 50/50 in Week 3+. Disney has tried to alter the percentage take they get over the last decade in their favor, but it's still not anywhere near 100% - it's probably still not 75% of the total, and 65% might be a safer estimate.
However, all those numbers are just domestic (which actually includes the US and Canada) - the international take is actually worse, with the % going to the movie producers being 50%, _at best_ - for some countries like China, it is more like 20%. (Which is why a lot of movies don't even get Chinese releases anymore - even if the Chinese government allows it, getting 20% of $20M just isn't worth the translation, advertising, etc. costs.)
So even being generous and giving Disney 75% of Domestic and 50% of International, Disney has currently returned $103M domestic and $55M int'l, or ~$160M total - they haven't even recovered the cost of production, much less advertisement.
But what about D+ revenues! Sure, Disney can _claim_ D+ spent $100M to get the rights to M&G in perpetuity, but that's just Disney paying Disney. If we look at it in terms of costs to produce episodes of The Mandalorian, if episodes still only cost $15M each (very unlikely with inflation), then at this point M&G the movie has cost Disney at least $100M, for what would be less than three episodes of The Mandalorian runtime, or less than $45M to make if they were S4. Claiming M&G is free money because it would have been S4 is wrong, because Disney has still lost more than it would cost to make three episodes of The Mandalorian.
But yes, the survival of Star Wars is a lot to put on Starfighter's shoulders, and yes, I expect the mother of all promotional budgets to kick in as soon as Doomsday is out.