Still Possible to Gain Access After the Open Beta Has Ended?

From what I gather, the open beta phase has ended, and currently, only Kickstarter backers have access until March 11, right? I'm wondering if there's still a chance to contribute and secure access, or if that opportunity has already expired. Thank you!

Edit 1: My post has attracted hundreds of views, which suggests to me that others might also be seeking the same information, unless it's something obvious that I'm simply unaware of. It would really help if the SG team could provide clearer and more accessible details on this matter.

Edit 2: This link offers some insight. It looks like we need to wait for them to add a specific late pledge reward on Kickstarter in exchange for continued access.