That's correct, 4 new HMs will enter on July 9th. Allister, Terry, Maggie, and Adrian (They're from the shortlist). However, all 4 will automatically face the public vote, with 2 of them being evicted the following friday, and so only 2 will survive. Source =
http://www.channel4.com/bigbrother/a...ing-in/view.c4