I've always thought there will be a Richonne baby. I've caught a few foreshadowing and teases even in the dialog. The strongest for me - the shot focusing on Michonne staring at a drawing of baby Moses in Gabriel's church in "Strangers". Rick, Glen, Daryl, Michonne and Carol were all featured staring at images/writings and all the images foreshadowed their future. The focus on Michonne's expression staring at Gleggie's baby sonogram in the RV trip to Hilltop. The tease to the audience when Rick in "East" emphasized "not THAT pregnant lady". Yes, he was referring to Maggie, but the initial split second reaction most had while Rick, laying on top of Michonne, looking down at her, speaks to her that dialog about pregnancy was - "What! Is Michonne, are they....pregnant?" The dialog was phrased a specific way with them in that specific position for a reason imo. It was a tease. Watching the YouTube reaction videos for that scene, I noticed the majority had that same split second reaction and were asking, "Is Michonne pregnant?" If it does happen, which I strongly think it will, we won't see her big with child throughout a season. Most of her pregnancy will be over the hiatus (hidden in a time jump) and the child born, aged some and revealed after the time jump. Most likely after AOW ends which has a big time jump of a couple years before the next arc begins. That will age Judith a great deal if she survives and the Richonne child will enter the show as a toddler. This way, Michonne would still be in fighting form before and after. AL and DG are not going to be in TWD beyond 2-3 more years imo, so I too believe like you if there is a Richonne pregnancy, it will be revealed soon, happen over a big time jump and the child shown at end of AOW in season 8 or beginning of season 9.