Plane & Simple does not appear in the new catty, so one can only assume that they will no longer be available after September 30th.
Sew Lovely hasn't made it either, so if you love the samples I've made with this set, and would like to add it to your collection, let me know asap.
The top right card shows the Baby Blossoms two-step stamping set, that means you have to stamp twice using a pale ink first with one stamp, and ink a darker ink with the co-ordinating "shadow" stamp to give the effect as shown in bottom left corner. The patchwork DSP is from the Springtime Vintage suite. Both these haven't made it ino the new catty either.
Products in the Mini catalog have not been included in the retirement list. It is safe to assume that since the Mini is only valid from 1 April to 30 September, come the 30th, you will no longer be able to make purchases from the Mini catalogue.
Do check back and keep an eye on what's going, and what's staying.