Looks like your probably flying at Horizon with good SIC time. You are ready to be a CA...you just can't hold it. Compass is hiring into the FO seat now. If hired, expect to sit right seat until you get the CA bid. In training, you will be typed, so upgrade to CA does not require going back to the schoolhouse. If hired in the next few weeks, expect to get an October/November class date. Your seniority range if starting in Oct/Nov will most likely be 125-175.
36 aircraft on firm order equals the need for about 180 Captains. The company has 36 firm options to my knowledge that probably will get exercised..but nothing confirmed. Right now the flow to NW sends 90 guys to NW in about 3 to 3.5 years meaning guys up to number 270 or so will sit left seat rather quickly. Also, this does not take into account attrition to carriers other than NW. Compass requires you to sign a one year training agreement - so there could be guys leaving before going to NW. I've heard ALPA has instructed the guys in training to not sign the training agreement..but I don't know about that one.
Search for gouge on here and the other forum and you'll have good intel.