MVP is decided at the end of the PO's. PO's got no influence on MVP voting what so ever.
it just that the MVP nomination is a part of th offseason processing that will be taking place this monday (might continue on to tuesday, since offseason processing is something that takes needs some time...)
concerning the trophie's:
that is only for those who have got supporter. i'd say it shows as soon as you get them. if not, it will be added to your profile during the offseaso processing aswell.
Rev