L1, L2 Visa

Hello – We’ve been in US for ~ 2.5 years now. I’m on L1A visa with a petition end date of 09/19. My wife is on L2 and working with het L2 EAD too valid until 09/19. We were supposed to go to Mexico for our L1A Blanket stamping on 03/31 however due to COVID we couldn’t. I have now taken dates of 05/26. This too is contingent to the fact that US-Mexico borders open by then and the consulate in Mexico becomes fully functional. If that happens, both of us should have a valid visa and I can apply for my wife’s EAD extension and she can possibly hope to get it by September [ 3 months to be very optimistic].
However, If Mexico is not an option, my Organization would apply for an extension of EAD, L1 and L2 visas concurrently from US. With premium not being an option these days, the extension could come thru in ~ 4-5 months and so would EAD.
The benefit of going to Mexico is that the rejection rates of L1A there are possibly less. I wanted to seek help from this group as to what would be the best option for me in this situation. Has there been a decrease in rejections on L1A extensions that’s been observed lately? Also, with USCIS being close-down – could this potentially delay further the extension processes. Any guidance would be much appreciated.