Any plans to expand the line up for hybrids?

Titleist won’t be releasing the options for the GT hybrids until sometime in the early spring. Nor release the information here before the official release.
Between the TSR 1&2 lines there are lofts from 18 to 29 degrees. What were you looking for?

Titleist does have multiple loft options in their fairway clubs. They just do not bother with calling them 3,4,5,7 woods. Too many golfers have unique needs in how many fairways they need and what lofts work best for them. Better not to get hung up in the mindset of the traditional club numbering and focus on the loft options and shaft lengths that you need to fill your gaps. And... as Don said, there will eventually be GT hybrids too.

A 7 Wood is a fairway wood, not a hybrid. They don't have plans for this... they've been producing them just like all the other companies.

Titleist does offer a 7 wood, it's the 21 degree fairway wood.

They offer hybrid way higher lofted than a 7 wood, down all the way to 29 degrees which is will probably give you the yardage of a standard 6 iron, game improvement 7 iron.