No this has no effect on the mid terms unless the results are very close. Also not really news now. Was expected after the Supreme Court decision to require Alabama to reuse its 2024 map. It likely gains one seat for the Republicans relative to the redrawn 2025 map. In total the Republicans gain less than 10 seats by all the redistricting. Some of the seats may be dummymanders in Texas (if they misjudged the Latino vote) or in Florida (because the margins are very close and local seat by seat variation could easily mean they lose some seats that were safe before the redistricting).
The Florida map isn’t confirmed yet with some possibility still it could be rejected.
RacetotheWH which includes all the redistricting as expected at present and predicts 3 chances in 4 for the Dems to win the House in the mid terms and by 28 seats.
https://www.racetothewh.com/house
Future changes unlikely to change that by more than a seat or two - if Florida is rejected (unlikely) could increase the margin to above 30.
The trend towards Dems in the House has been an extra 12 seats margin in 8 months or about 1.5 seats per month since October even after taking account of all the gerrymandering since October.
There is an almost exactly 50 50 chance for the Senate (not affected by the redistricting). (40.5 : 50.5)
https://www.racetothewh.com/senate/26
This makes it only 1 in 8 chance that the Republicans keep control of both houses.
This is just a projection, they are often wrong, but the House tends to be won by large margins, the last two elections in 2024 and 2022 were unusually close. It could be wrong either way including a larger margin for Dems.
