H4 EAD Extension Conflict with H1+H4 extension

[USADreams]

I have a question related to my next H1 extension and my wife's current H4 EAD extension conflict.

Due to my change of employer, my and my wife's current H1B is valid till Oct 2024. While my wife's H4 EAD is expiring on April 2024. We can file her H4 EAD extension now, and receive the extension till Oct 2024. 

We have to file H1+ H4 + H4 EAD extension again in April 2024 (6 months before the current H1 and H4 expires). I will be filing under premium. Since the current H4 EAD extension will not be under premium, it will take about 8 months based on social media timelines. If the premium application gets approved and we get H4 EAD valid till 2027, and then the current application is processed, valid till Oct 2024. Will this override previous EAD expiration (Oct 2027) by later EAD approval (Oct 2024) ?

Should I file EAD extension now and again in April or just file in April ?

[Zodiac System]

H4 - I94 is valid until October 2024.  I think you will be good filing H4 EAD in April and receiving a receipt notice for the same in the month of April.  H4-EAD qualifies for automatic extension when H4 - I-94 is current (and in your case valid until October 2024).   Good Luck.