Meetgans

1.I am currently staying in USA in L1A visa (Stayed outside as Manager and entered US in AUG 2018 and Visa expiring on May 2010) , BUT due to recent change of companies policy , they may not file in EB1 for Managers & need to be as SMetc & above outside US and so they might file only in EB2 I do got Canada PR last August 2018 and still trying US green card options Please confirm if its worth to file EB2 and then go back to Canada after 1 year to retain PR validity , i.e, any benefits for having I140 and go OR better to go now rather waiting for I140 as not sure how long they might file PERM and I140 , any suggestions would be great help.. 2.Also If we become canada citizens and any possibilities for getting US greencard , pls suggest in details ..Thank you