If the timeline is anything similar to what it was last year, we should begin to hear about IFS/MFS/UFT class dates starting tomorrow, in-line with the public release, at the earliest. All the assignments and TDYs have to be manually hand-jammed by AFPC, so we will probably start to see a slow trickle of dates/RIPs hitting our inboxes.
Keep an eye on your 'Career Data Brief', under vMPF; it will list IFS/MFS under 'Projected Training' with a start and end date. Concerning class start dates, your unit's loss roster (controlled by the CSS) is the first place to indicate any pending assignment, even before CC advance notification or the auto-generated AFPC assignment e-mail.