Hello, instead of posting the current status here and elsewhere everyday, I've made a simple page which you can check every time you want
http://joo.kie.sk/cosmosex/buy/status/
It will be updated ever time there will be some change. The batch will be sold few devices at the time - PayPal requires the packages to be shipped soon after payment, and too much payments will cause me to be stuck under of pile of orders, which I could fail to send within required time, so instead I will turn on the store, get few payments, turn off the store

and the state will be reflected on that status page.
As for RPi 2 and RPi 3 - currently they are not supported, because the current linux distro in CE doesn't support them, but there will be transition to standard Raspbian in the near future (for those who want - the current linux distro will be still supported), and at that time the RPi 2 and RPi 3 will be probably supported. I don't know when it that going to happen, but it will be only a change in the software, so this doesn't limit the sales of hardware.
Currently there is no benefit from higher performance of RPi 2 and RPi 3, and as they are more expensive as RPi 1, I'm not sure if most of the people would really want them - people don't like the high price of CE + RPi even now; even if it combines more peripherals in a single device.