Ramped motion effects and keyframes will not translate to an EDL, but a motion effect will. Here is an EDL from a basic slomo done to a source clip. The following is a CMX 3600 EDL:
TITLE: MOTION EFFECT
FCM: NON-DROP FRAME
001 MVI_2411 V C 00:00:30:00 00:00:31:02 01:00:00:00 01:00:02:01
M2 MVI_2411 012.0 00:00:30:00
* FROM CLIP NAME: 51G-1
As you can see, line 001 is the IN-OUT of the clip that was used (original length) and the record side is the duration that it must fill. In order to do so, an M2 command is listed that clip now plays at 12 (fps) starting at source timecode of 00:00:30:00.
Michael