Deadpool & Wolverine is available digitally, with the Blu-ray and Disney Plus streaming versions to follow soon. That's the only way to see these mutants in the MCU for the time being.
After the massive success of Deadpool 3, it's likely that Marvel will want to bring both Deadpool (Ryan Reynolds) and Wolverine (Hugh Jackman) back for more shenanigans. It's not too crazy to speculate that we'll see both in the upcoming Avengers movies, Doomsday and Secret Wars.
But Marvel has yet to confirm anything...