I didn't like it. I'd much preferd to have had it all end without a real resoultion, something like the alien ship making a straffing run on them and the two of them rowing the boat back towards moya, John rowing and wisecracking and Aeryn blazing away as the camera pulls back further and further 'till they're gone. Leaves it all up in the air then, and ends with things going pear-shaped again, as usual.
But didn't the alien with the amazing expanding head in the ship say something like "capturing target for evaluation"? AFAIK there are no firm plans for a follow up movie but "its being discussed" along with an anime sequal.