L1A I-140 approved. Eligible for 1-140 AC-21 extension

[Mick_81]

I came on L1B and continued for 3 years before converting to H1B. Converted from H1B to L1A end of 5th year. GC being filed under EB-2.If I get I-140 approved in 7th year of L1A can I file for AC-21 extension & move to H1B because of previous H1 visa OR do I have to exit and come back after i get H1B in lottery.