For those complaining about no new map:

"We’re currently in the midst of planning new maps for the expansion, and afterwards we are also planning to expand the Wolves’ Den."

You didn't read the first post very well. We ARE getting it, just not right away. Patience, guys :B

As for the topic, I agree with Ultimatecalibur. The map being the same with different rules will make a totally different game enough as it is. Also: Frontlines isn't going to be changed, I think a new separate que will be added for the new version. Like normal and hard mode instances.