The PSVita OFW update 2.00 is now live! This update could block the eCFW kexploit but considering the past, it surely does block all the user mode exploits (Sony why won’t you ever understand!). This firmware update adds a lot of new features, the main highlight being Playstation Plus(For a full list of highlights : http://wololo.net/2012/11/18/to-update-or-not-to-update-that-is-the-question/ )
Many users may be tempted to update but, it is recommended that users who wish to keep eCFW wait until it is known if the exploit has been patched or not. For other users it is their choice as no one knows what will happen next but, it is still recommended to refrain from updating until we have more information about the update and what it does.