Guild Wars 2

So I have a friend I plan on inviting for the trial event, but I have a few questions that I couldn’t find the answers to anywhere

1. What limitiations are placed on trial accounts? Are they allowed in WvW/guilds/sPvP? WvW is one of the things I think my friend would be most interested it.

2. Upon receiving the invite, can he start downloading right away?

3. Is the player you invite automatically placed on the server you’re on? Mines always full and I’m rather worried about being able to play with him.

4. Will his account from the trial carry over if he decides to buy the game?

Thanks for your help in advance

I can give a definite answer 2: I invited a friend earlier and she’s already downloaded the client.

As for 3: ANet has said in another post that your friends will be able to play on your server. I hope this is the case or if not, that guesting has been turned on. Like you, my server tends to be full.