Okay, regardless - you would be able to own a level 19 twink without having to pay a subscription.
That seems fairly exciting to people like me, who enjoy competitive PvP but don't want to pay for it.
You could have a 19 while subbed, sure. Can't lock while lapsed. You wouldnt be able to access anything post 20. Like DKs for example, or like i mentioned earlier cancelling/refunding your credit cards after leveling a toon past 20. I'm just guessing this how it's going to work, because the only difference i see is being able to access the inactive account, being able to access 20 and below characters, and being able to join a guild you already have a character in (from when you were subbed). I'm betting you'll stay in a guild you were already in at the time of your account lapsing. Assuming you were 20 and below.
What this means is, assuming they exp cap your 20, and stop you from leveling to 21 and locking yourself out of the character (like starter accounts currently function) you could basically twink out a 20 with p2p stuff.
Full p2p enchants, gear, armor kits, full bank slots, reagent tab, bigger bags, guild perks. Professions maxed out to whatever the cap is at 20 w/o trial restrictions.
Personally, I'd trade all the p2p gear and enchants in the world for lighter restrictions. Being able to actually use chats, form parties, a larger gold cap, or none. Access too the AH, profession caps removed would be wonderful. I mean, these are "paying" players, obviously not gold spammers at that point. The only people who are going to benefit from this, as it currently stands, are trial twinks. The restrictions are too numerous and tight to be easily navigated by anyone other than those who have figured out the system.
Ok so you have an account. It has a 19 twink. You have XP off. You run out of time. Trials don't have XP off, they have just reached cap.
So they would then CHANGE you XP settings: turn on your XP and cap you at a possible of level 20. You start BGing. You are placed in an XP on BG. You ding 20.
I really doubt this will happen. Which is why I'm saying if you lock XP on your account and run out of time expect to stay at 19 as a "trial" Are you going to be able to mess with XP settings when you are out of time, I really doubt it. That's the part that gets restricted. But I don't see them fussing with current settings, it seems really dangerous for twinks...
Its the same thing with gold, if you have 1k gold on your paid account 20 and you run out of time are they just taking the 990 extra?
This is exactly what happened in Cataclysm.
http://us.battle.net/wow/en/forum/topic/3342097398
Aradiel most likely nailed the gold thing here
It doesn't get reduced. You just can't get more.
Again, we don't really know. All we have to go on is what's been stated, and the way wow has worked in the past/present.