So far Kevin Feige has not officially announced what the introduction of Deadpool will be like at MCU, but according to We Got This Covered, the mercenary's movie may feature a female version of it: Lady Deadpool.
The information has not been confirmed, but it would be a way to bring the character's own universe and perhaps invest in a parallel line of movies. This would bring the Deadpool Corps to the MCU, which also features dog, kid and zombie versions of Deadpool.
In the comic, Wanda Wilson is a character from a parallel universe and has as main villain General America – evil version of Steve Rogers. If the character is harnessed in the MCU, Feige could use a simpler version for her without involving a multiverse.
Deadpool – 2016 (Source: IMDb / Playback)
It has been suggested that Deadpool could be introduced in Thor: Love And Thunder and that the character's solo movie would be responsible for introducing the X-Men into the MCU. Should this happen, Lady Deadpool could have her debut at another time, and could even win a series at Disney +.
Another possibility is for the mercenary to win a movie against the entire MCU. That could make him need some support, and it was a good opportunity to introduce the female version of the antihero.