I just had the TCU in my Honda reset by the dealer. He says the auto
trans is wearing out and currently the left / right transmission axle
seals need replacing.

Couple of questions come to mind:

1- I'm guessing the reset is (based on the above) sensing the trans
is wearing out. Is this correct or do these TCU's need to be reset
for other reasons besides wear and tear on the transmission ?? Is it
likely that the TCU will need to be reset again in the near future
based on the fact that it needed it now?

2- How serious is the transmission axle seals leaking? I know it's
not good to allow leakage but if I don't replace them for a few months
and meanwhile keep the fluids up, will that be okay for the moment?