The quest A Shattered Journey Through Time from the Cataclysm TW vendor Kiatke in Stormwind does not list 10 bronze celebration tokens as a reward, unlike the TBC TW and Wrath TW complete 5 TW dungeons quests which do give 10 bronze celebration tokens as reward. Is this a bug or intended?
So I could be wrong, but I’m pretty sure you are referring to the “Anniversary Timewalking Weekly for leveling” instead of the “Normal weekly TW quest”. I think they are different. One is “A Shattered Journey Through Time” and is meant to be able to be done while sub level 80 and has different rewards; XP, gold and Timely Goodie Bag (no bronze tokens), while the normal TW weekly event, “A Shattered Path Through Time,” will reward 10 bronze tokens and a normal-difficulty raid cache.
The Anniversary TW quest is meant to be done while leveling, and if I’m not mistaken (correct me if I’m wrong) and shares a separate lockout as the max level weekly so while leveling characters in TW, you can complete the leveling weekly, then at max level get the normal TW weekly quest, ie you can get rewards from the leveling quest, xp and a small cache, and then still do the one at max level for the normal-difficulty cache item.