This appears to be the partisan control map as of 2017. Red = Dem control, Blue = Repub control, Green = Mixed control, Gray = non-partisan or at-large. Probably there will be some shift to the Dems especially among Governors races.
Potential gerrymanders
Repub:
UT - keep same map, splitting Salt Lake
NE - add rural areas to NE-2?
KS - add rural areas to KS-3?
MO - could divide K.C. but that could easily backfire
WI - could weaken WI-3
MI - prob. keep same map
IN - could weaken IN-1
OH - keep same map, but if lose a seat, would come from Repubs
OK - could shore map OK-5, but not likely to be necessary
TX - prob. new seats would be split or Democratic plus perhaps a white Austin seat
AR - keep same map
MS - keep same map
AL - keep same map
GA - may even have to concede Dem or swing Atlanta suburbs seat
SC - keep same map, or maybe shore up SC-1 and/or SC-7
NC - keep same map, but if gain new seat, it would be Democratic
FL - prob. keep same map, I'm not too familiar with Fla. politics
TN - could divide Nashville though Cooper has represented rural Tennessee before
KY - could divide Louisville
WV - keep same map
NH - prob. would be similar map regardless of whose in control
Dem:
OR - keep same map, but if gain CD would at best be a swing CD
MD - keep same map
NY - could threaten Syracuse seat; Long Island Repubs would be hard to dislodge
MA - keep same map
RI - prob. will end up at-large but if not, would likely keep same map
What are your thoughts?
Also, does anyone have a guess at which states are likely to gain/lose seats?