You appear to be outside of the 6 year 'window' from 05 to 11. With that said, an attorney might be able to re-capture some of your 'unused' time.
If so, there is no need to wait until April 1st to file.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship. Also, keep in mind that this is an INTERNET BLOG. You should not rely on anything you read here to make decisions which impact on your life. Meet with an attorney, via Skype, or in person, to obtain competent personal and professional guidance.
Since you left the US in 2007 and I assume you have not returned, you have more than one continuous year outside the US. You may have to file for H-1B under the 2014 cap or seek employment with a cap exempt employer.