How will the new UTC affect other schools?

I'VE been wondering what the impact of the new University Technical College will be on other schools in the area.
This planned development will have 600 students aged 14-18, specialising in science and engineering.
Our MP says it’s “excellent news for the young people of Salisbury and South Wiltshire”, giving them a “vital new option”. And so it is, even though I don’t agree with closing the police station in a mad rush to accommodate it.
But where will the UTC draw its students from?
I haven’t spoken to local headteachers about it, so I’m only guessing. But isn’t it likely to cream off the most able pupils from our non-selective secondary schools?
And if so, won’t that make it tougher for these schools to attract good teachers and sponsors, and hence disadvantage those pupils who are left behind?
I don’t disapprove of academic selection at all. Neither do I disapprove of selecting pupils for a whole range of other talents, such as sport and music.
But I do firmly believe that all children should be given equal opportunities in terms of funding, facilities and most importantly, quality of teaching, and I would like to hear from the powers-that-be that plans are in place, maybe through incentives to teaching staff, to make sure that no pupil, anywhere, leaves school feeling like an also-ran.