Civic turbo has a habit of destroying torque converter seal. So you should get it replaced, and axle seals. Do not open any other parts of the transmission.
These are the only three seals you need to get replaced.
However engine main seal can be observed that does it need replacement as its hectic to get the transmission down again and again so see if engine main seal is good, if yes then no need for it, but if there's some seepage then change that too.