No sooner had I asked the question, but Bob Neill tweeted the answer:

I will be working closely with @jameswhartonmp and Conservative colleagues to secure an in-out EU referendum via my Private Members’ Bill!
— Bob Neill MP (@neill_bob) June 12, 2014

Of course, the question still remains as to whether he’ll use the identical text from Wharton’s Bill, which would be a condition for use of the Parliament Act to force it through the Lords.

The text he brings forward will reveal something of the Government’s intentions.