Perhaps, but you also overlook the fact that MVM typically release most Geneon licenced series in the UK, I believe, or would be led to believe they have their own agreement with them. Also, on the subject of Ah! My Goddess, as the series it titled, Manga UK are releasing it now, but ADV had the initial UK rights, before running into their well known troubles. Manga only picked it up then, after FUNi presumably "saved" it from ADV. I'd agree on the point of a sequel series not always being released by the same company here in the UK, but going on recent trends, I'd say its much more likely that MVM or on the off chance Manga will release those titles here. Beez tend to focus mostly on Bandai titles (obviously), with the odd other release creeping in here and there.
Finally, releasing a title here with subtitles only, has also always been a possibility here (see Only Yesterday, Ocean Waves, and Jin-Roh, Tokyo Godfathers, I beleive) but in order to gain the most sales possible, the better business strategy would always be to release with a dub too. I assume you made that comment due to Durarara!! Beez understand this, as although Durarara!! is being released sub only first, they are following it up with a dub release later.