SingularPlural
I will be walkingwe will be walking
you will be walkingyou will be walking
he/she/it will be walkingthey will be walking

SingularPlural
I will be sleepingwe will be sleeping
you will be sleepingyou will be sleeping
he/she/it will be sleepingthey will be sleeping

SingularPlural
There is no future progressive for the "to be" verb. "Will be being" is expressed simply as "will be": "We will be being happy."