so - as far as i did understand it there have to be made no additional hardware changes in the cores to use those new PIC18F4685 chips to get ready for all new projects?
can there be used any other versions of the pic18Fxxx without limitations - i realised that the PIC18F4685 is not available in poland.
The 4685 is only needed for MBSID V2. There are no changes to the core module for it.
There are a lot of different PIC18Fs. Of course, Microchip offers this variety for some reason, i.e. they all have different features, RAM/Flash sizes, integrated peripherals, number of pins etc. The MBSID needs the features of the 4685 (especially the CAN bus), so you can´t simply use another type. If you can´t buy 4685s in Poland, ask SmashTV or Doc, or try to get samples from Microchip.
Buying a PIC18F4685 from doc is the most simple and cheapest solution for people in europe to get the PIC with pre-burned bootloader, so that no PIC programmer is required