Is the user redirected to the payment gateway's page when PayPal or 2CheckOut(in the future release) is used?
Yes for Paypal (Paypal PRO is not supported at this time); can't comment on 2CheckOut as of yet to use it, sorry.
Is CBSubs 1.1 coming out in the next 2 months or so? A definite No or at least any indication of a quarter and a year will greatly help.
I would hope so, but can't provide a release date or definite answer sorry.