I doubt an OF announcement is coming soon. Even though building on the momentum of the miniseries is like a no-brainer, right now the earliest an ongoing could start is really December, 4 months after the mini is gone, likely longer.
Unless Misters Kolins and Oeming have been told to shut up until Toronto (which doesn't look like the case at all, at all) then nobody is working on the ongoing as we speak. That puts the ongoing to February, at ealiest.
Outside of the 'hands off Aurora and Northstar' comment and the fact the twins aren't in Astonishing (hooray), or any other upcoming X-title, the only Flight news we have is that Weapon Omega in MCP would be in continuity with any OF ongoing.
After all, last year's TO announcement was grand before they ruined it in January. They may do it again, big news in TO (though that pushes the ongoing even further back) and hopefully no more Brevoort-inspired downgrades!