Regarding H1 Extension

I came to US In July 2010 on L1-B visa (valid until April 2013 and valid I-94 till Aug 2014 ) with Employer A. I was on L1-B until November-2011 (38 months).

Instead of L1-b extension, My employer filed for my H1-B in April 2013 and it was approved in November-2013. Since November, 2013, I’m on H1-B with same employer.

My current petition is valid till August 14,2016 and I would max out my 6 years (L1+H1) around same time (October 23 2016, including vacations).

My employer has no plans to file for my GC yet. I understand that If my GC is not filed, I would have to go back and stay out of US for 1 year period.

Please advise on below questions:

Can my employer file for my H1-Extension after a years’ time under same H1-B petition, since my H1-B petition would still not complete 6 years term? (3 years on L1 and 3 on H1)

Considering case 1 is true, Will I be eligible for Cap-exempt?

When is the earliest can Cap exempt extension be filed? Has it to be filed after completing 1 year term or can be filed but stamped/used after 1 year?

If you want to reset the clock, then:

  1. You need to stay outside US for 1 year

  2. You need to go through the cap again

So, if you use cap-exempt or file H-1 extension, then your clock is not reset.