The way I see it, there are FIVE possible answers; presented in order of most to least likely.
1) New material trumps old and Pazi T was saKhan in 3048 and remained there until his death in 3056.
2) Error in OTP: Revival Trials that needs to be errata'd, replacing Pazi T with an as yet unnamed saKhan
3) We read the comment in FM:WC literally as the Coyotes elected two new Khans in 3052. That is, they elected one Khan, something happened to him and then they elected another. Pazi T remains saKhan throughout.
4) Pazi T was saKhan in 3048 but was stood down from the position afterwards, possibly due to the Coyotes' performance in the trials. After 3052, he was re-elected.
5) The Pazi T who was saKhan in 3048 is a different one to the Pazi T who was elected saKhan in 3052. Not saying it couldn't happen, but it is a might silly.