I'm amazed at how much effort HTC has put into game development this year.
I think a WWI arena would be a nice change of pace, I'll be sure to give it a go.
I wonder if HTC will be adding a modern day arena? F-14’s, F-15's, F-18’s, Su-27’s, Mig-29’s etc. That would make my day. 
How cool would be to log on and have a choice between WWI, WWII or modern day?
Apples and Oranges man, and you are talking two completely different market segments.
My initial reaction: Meh. I found Dawn of Aces interminably boring.
However, just as Doug and Dale learned from Warbirds when making Aces High, perhaps there are new lessons learned that will make the WWI area fun. I certainly hope so.
-Llama
He wouldn't still be in business if he didn't learn from his lessons.
I am going to guess that it will be a Furball Arena, with some very kewl clouds and terrrain, but no bigger than one square or two in the MA. It will have 2 or 4 bases, so as to allow aircraft to get up without getting terribly vulched.
I am also going to say that those who don't like it, will still have plenty MA left to play, and it will not only gain new faithful ranging from once a week players, to people who pop in every night, but it will also bring a brand new market share to the HTC product line.
Now I know there are some people getting their panties all in a wad because they don't have their 13th favorite variant of the P38, or a B29, or even a KI43... but I would venture a guess that he is simply using old code from DOA for the flight models, and simply cut and pasting it over the current graphics and game engine of AHII.
I personally, am looking forward to the Rudder Pedal madness that is WWI combat, and you want to talk about constant adrenaline...
It will be more akin to Chess Playing than Checkers (Checkers being the MA Furballs), and don't worry about Radio's, your not going to have time for radios, you just better lean your head out the cockpit and check your wingmans 6 and keep it clear.