the GS should be maintained for that whole week..
They deserve much money of course. It will make the whole league much more competitive. The additional money in entering SF should push teams to aim to reach SF. More teams aiming for SF means more fun :)
B3 should not be affected that much as the minutes there does not affect training and GS.
Enthusiasm should be just usual. There is a maximum of Enthusiasm so that should not be a problem at all. It will be up to the team to work it out.
The consequences about doing this can be avoided. :)