More sources of information are chiming on the order releases coming out over the next month, and I wanted to throw their comments into the mix so that we can get a better idea of what to expect.
Again these are rumors as we try and decipher what is coming. Here is a link to the previous conversation.
via anonymous sources on Faeit 212
Your other source is similar to the information ive had.
Stormsurge preorder 3rd release 10th.
Ghostkeel preorder 10th release 17th,
codex preorder 17th release 24th.
I have no information on a 4th week of released and understand the new FW and Crisis suits will be released alongside the new units over the 3 weeks. Although i've been wrong on specific details before.