Question on Trial Keys

Just two quick question.

1. Does the time on trial keys run out even when not playing on their specific campaign areas? (example, nf trial key running out while playing pvp or prophecies).

2. If i use the epic key (which gives access to Proh/Fac) to get the Assasin hero, will i still be able to use him after the time runs out? If so, will the skills be usable?