Depends what price they set for it. Bearing in mind that SupCom is 25 quid for the full game, if Northern Strike is any more than, say, 15 quid then I dont reckon Ill pick it up. Even then, itd be about 25% of a full game for 66% of the price.
They're not adding much to it, you know those 'Stuff' packs you get for The Sims? I'd say it would be something like that, so £10 seems probable.
I will buy it, new maps are always appealing!
The urban Titan map might make it more interesting. I hope it is more of a linear map (á la Minsk) instead of lateral (á la Sidi Power plant). That way, there is a tangible frontline, instead of having nuggets running back and forth for the easy out-of-the-way silos.
I doubt if it will be as much as £15, BF2 expansion packs were only £6.
I will buy it, new maps are always appealing!