h1b amendment when underlying I 140 revoked

[kkcr]

im planning to transfer my H1b to a consulting company.

currently i have my I-140 approved and the new company is willing to

transfer my H1b immediatly.

since it is a consulting company , i will have to travel to various

client locations which would require H1b ammendments.

my question is , assuming the new company gets 3 year extension based

on the current I 140 , and later on my current company revokes my

I-140 , will i still be able to file H1B amendments with the new

company at a later date when the underlying I -140 is revoked.

Im on 7th year H1b.