[Elecraft] K4 Predistortion planned? timetable?

[Robert Sands]

Is the processor in the K4 fast or big enough to handle the demand of the
anticipated predistortion algorithm? Is this predistortion algorithm a
proprietary matter or is it constructed de novo from existing knowledge?
Any information on what is planned would be appreciated. Have not seen much
other than "later". Big attraction to me.
Robert
K7VO