I received numerous message, being asked to answer/analyze/confirm H-1 extension based on their individual cases. Since it is case specifically, I urge you guys to read
the post to make your determination.
Answer following questions -
1) What is your PD?
If it is less than one year (to 6-year H-1 expiration), you're out of luck
2) Has your I-140 approved?
If "No", you get one year extension
3) Your I-140 is approved, then is your PD current when you file I-129?
If "Yes", you get one year
If "No", you get three
Since H-1 extension has a maximum of 3 years, those who is qualified to 1 year extension may combine their leftover of 6-year at one petition.