Abnell

I originally played on US Illidan, but when I had to move to Europe I was faced with a problem very similar to the ones people in this thread have. I chose to reroll, so during October 2006, after I had moved, I rerolled on EU Kazzak. I was lucky enough to find a guild full of people who had rerolled from scratch as well, and our first Maulgar kill was on 18/11/2007. We're working on twins right now.

Our progress was actually slowed down by two factors:

1) It spanned the winter holidays so that's a few weeks of progression lost.

2) The raiding roster wasn't fully filled with veteral reroll raiders, so there was a fair amount of time lost to recruitment etc.

If you have the better part of a balanced 25man raid willing to reroll and raid ~5days a week, you are still in a good position to reroll and see the majority of endgame content before the expansion, which probably isn't due at least until the fall.

Just make sure to fully take advantage of all the gear available to you. If everyone makes their craftable gear asap while using badges/pvp/rep rewards to fill out the remaining slots you can be geared very quickly. Keep in mind that guilds killed Illidan months and months ago in gear nowhere close to what you can get without even seting foot in a T5 instance now. Not to mention that T6 attunements are removed now, so you never have to worry about going back to vashj and kael a few times like my guild.

Edit: If you're doing this completely solo, then it will be much harder to get integrated into the raiding community of a server. Like people above me have said, you need to do your research now. The possibilities are there though, and even if you don't manage to clear T6 content before WotLK, you can easily get yourself in a position to join the first wave of raiding at 80.