If you are not going to use your current shop anymore, I would consider eliminating the connecting door, and one of the back doors?
If possible, I would make a small dirty room for metal grinding. Belt, metal and wheel grit can make metal and wood finishing difficult, and it gets everywhere. I would not mix metal and wood dust collection, if that is part of the picture.
If the lift garage door is staying on the left, then maybe make the new right side swing out door to mimic it for appearance? If power tools are lower on your usage priority, maybe the table saw can get shuffled to a back door, so it's easy to use, but not necessarily front and center?
Only thoughts, it's always exciting to figure out more shop space, lobby your gang to keep both spaces?
