I researched using talesoftibia.com and its database of transcripts of NPCs and Books from all tibia.
Yvette search on books:
Original Input: yvette
libsearch.js:757 Normalized Input: yvette
libsearch.js:777 Regex Pattern: ^(?=(?=.*yvette)).*$
libsearch.js:509 Keyword regex: /^(?=(?=.*yvette)).*$/gimu
libsearch.js:539 Found 0 matching books
libsearch.js:595 search: 9.4970703125 ms
Yvette search on npc transcripts:
Original Input: yvette
npsearch.js:749 Normalized Input: yvette
npsearch.js:769 Regex Pattern: ^(?=(?=.*yvette)).*$
npsearch.js:515 keyword regex: /^(?=(?=.*yvette)).*$/gimu
npsearch.js:550 Result: yvette
npsearch.js:552 Result after: yvette
npsearch.js:600 search: 14.791015625 ms
0 matching npc transcripts.
Search for Joran on books:
Original Input: joran
libsearch.js:757 Normalized Input: joran
libsearch.js:777 Regex Pattern: ^(?=(?=.*joran)).*$
libsearch.js:509 Keyword regex: /^(?=(?=.*joran)).*$/gimu
libsearch.js:539 Found 0 matching books
libsearch.js:595 search: 8.9619140625 ms
Search for Joran on Npc transcripts:
Original Input: joran
npsearch.js:749 Normalized Input: joran
npsearch.js:769 Regex Pattern: ^(?=(?=.*joran)).*$
npsearch.js:515 keyword regex: /^(?=(?=.*joran)).*$/gimu
npsearch.js:550 Result: joran
npsearch.js:552 Result after: joran
npsearch.js:600 search: 14.843994140625 ms
Found 0 Npc transcripts.
After going through on over 400 npc transcripts and 2135 books the words of Joran and/or Yvette are not found on the tibia history, so I can say yes, is NEW lore content on Tibia.
Sources:
Json scripts to scrap information on books and npc transcripts.
https://talesoftibia.com/ tools to search information with query filters.
