I don't think they've really been put in a position to draw since coming back. But I think the ultimate answer is different for Omega and the Bucks.
Based on the US numbers for Wrestle Kingdom and tickets sold, Omega is absolutely still a draw for a big match. Presumably they'll go back to ones with him at some point, and I think there's a lot still on the table for him.
The Bucks I'm less sure. When Omega took time off, they burned a lot of time in an ultimately directionless angle with Undisputed Era. The engagement in their character work has fallen off (is anyone watching BTE anymore?) and they're mostly out of dream matches unless someone jumps from WWE. They've teased going back to a story with Hangman, but I'm not even sure that would be a "draw" since I'd think most of the people who'd care about that are still watching AEW (that's part of the issue for them as a measurable draw - their fans were the baseline). I still love their work, and they're still an overall valuable part of the show (I'd be less likely to watch if they were gone for good), but I'm not sure they can drive things upward much now.