From Kyle Kondik at Larry Sabato's Crystal Ball:

While there will be major shifts in the House delegations of many states on Election Day, and while more than a handful of incumbents appear likely to lose, the total change in each party’s net total of House seats will probably not be large. That means it’s good to be the Republicans, who already hold a big edge in the House — an edge that we project them to keep. The Crystal Ball can now project that the Republicans will retain their House majority, although we suspect it will be at least a bit smaller than their current 25-seat edge.

Our modest projected gain for the Democrats is pretty similar to our first hard guess as to the net change in the House this cycle — on July 12, we said Democrats would pick up six seats; today, we’re saying Democrats plus five. If Democrats do in fact net five seats, that would make the House 237 Republican to 198 Democratic.