Should I get the T1 or wait for the T2 to come out? Will price and performance differences be significant?

I bought the HD595 back in 2009. It's still holding up but is showing some wear (plastic has some cracks in it, and the right side adjustment is a tad loose). Are these worth the upgrade? $99 is a nice BF price. Then again, part of me wants to explore high-end closed cans too.