Ok so...
California, Oregon and Wyoming are split in half.
(Possibly Jefferson, Lincoln and Cheyenne respectively.)
Nevada took land from California.
(Not much would change because of that mostly being mountains)
Montana took the Idaho Panhandle.
Kentucky looses a small portion of its west.
(Idk what it would be.)
Texas lost a small amount of land to a new state for some reason.
(Would it be Texlahoma or some other native name?)
Florida appears to be split.
(West Florida and East Florida maybe.)
Indiana and Ohio unite.
(Possibly into Ohio, because of its longer border with the river.)
Vermont and New Hampshire unite.
(Maybe New England?)
Canada annexed some northeastern land?
(Either given to Ontario or Quebec, or a new province called Acadia?)
Alaska and Hawaii probably become territories?
(Theyre white, not græy like the rest of the states.)