Why the NHL would move a team back to a failed, oversaturated (Boston, NYI, NYR, NJD) market like Hartford is beyond me...
The NHL wouldn't be moving anything.
If the new owners choose, they could move the team to Kalamazoo.
I believe the team could play in the Hartford Civic Center until a new arena is built. It has been done. The Hurricanes played in Greensboro while they waited for the RBC Center (to terrible crowds, I might add).
Oversaturated? Look at where American NHL players are from. Aside from Minnesota, Michigan and Wisconsin, that area is the heart of hockey in our country.