Headsculpt would be better today. Just look at how the excellent DX13 prototype turned into the even more excellent sculpts we ended up getting it. You better believe a sculpt from 09/10 could be done better today.
Yeah, then it comes out and years from now we look at it and say, "it could be better". Thing is, we've never had a 1/6 Battle Damaged T-800 before. Of course it should be up to date as far as standards go. But then what? It's 2015, sculpts have improved. Should we get another Battle Damaged version of Uncle Bob? Okay, it's 2018 that old 2015 sculpt is obsolete now, time for a 3.0? Before you know it, 2013 will be "four years ago" before we know it.
We finally got the Battle Damaged T-800 we've been wanting for the past 4 to 5 years. Now we all seem to want a redo of past figures. Where does it end? If things are constantly improving each year (and they are), none of our characters will ever match up to previous ones. Say they make a new regular Uncle Bob, boom, it's better looking than the battle damage. After that, they make a new T-1000 that blows away all the T-800s in terms of likeness and details. Now all the others look "off". Do you really want to keep doing this forever?
It's not like they're so bad that they look like these,
Even the Hot Toys T-1000 sausage finger and DX 10's PERS aren't anywhere near those. Everything can be improved until the end of time, sure. But do you
really want to buy more versions after all the money you put into your collection? You really can't wait until the day where half of the things you bought are "obsolete"?