No, Shralok Pack will never become a Lore item.
It merely says Pending Lore because Shralok Packs said Pending Lore during the era P99 intends to emulate. Shralok Packs did not become Lore during this era. In fact, they never did afterward. And they never ever will here on P99, either.
[You must be logged in to view images. Log in or Register.] They just say that because classic. Ask anyone on Blue.
Furthermore, if you would simply look the item up on the Wiki, you would know all this. And I shame you for not having looked the item up on the wiki. *shakes tiny fist* I will now do it for you.
https://wiki.project1999.com/Shralok_Pack