Maybe, but turboprops have lost a lot of ground to RJs. The complaints about the CRJ-100/200 are valid, I can personnaly attest to them. However, I have heard that the ERJs, CRJ
-700/900, and EMB-170/175/190/195 are vast improvements (have yet to fly on an RJ
other than CRJ-100/200s). If the Saab 2000s come back, they will be used aircraft as Saab no longer produces airliners. The Q400 might displace some RJs on shorter routes, but only where it makes sense. Airlines are trying to keep the number of fleet types to a minimum these days, so why buy a turboprop that can't serve the longer, lighter routes when an RJ
meets both short and long range needs?