Looks like a small declaration list for the men's 5km (as of 6/18, 8AM below):
Galen Rupp Nike/Nike Oregon Project 13:00.99 qualified declared
Hassan Mead Nike/NIKE OTCE 13:07.81 qualified declared
Benjamin True Saucony 13:11.24 qualified declared
Chris Derrick Nike/Bowerman Track Club 13:14.51 qualified declared
Bernard Lagat Nike 13:14.97 qualified declared
Ryan Hill Nike/Bowerman Track Club 13:15.92 qualified declared
Garrett Heath Brooks 13:16.31 qualified declared
Diego Estrada ASICS 13:17.30 qualified declared
Riley Masters Brooks 13:17.97 qualified declared
Jeff See Furman Elite 13:21.16 qualified declared
Lopez Lomong Nike/Bowerman Track Club 13:21.32 qualified declared
David Torrence Hoka One One 13:30.35 qualified declared
Eric Jenkins Oregon 13:31.76 qualified declared
I'm assuming they are going to expand the "accepted" athletes next week in order to fill out the fields?