I have finally enough tokens to buy a Reborn Potion or the Spectrum Potion (can not choose between one of those which I am going to buy haha)
But anyway everytime I look (diffrent times) it does not restock. Does that shop only restock at special times?
When it restocks (which isn't very often) a news update will say "so and so has restocked in the token shop". Whether it be a potion or a new TS item. I cannot be certain that it doesn't RS randomly (because I don't check :P)
When it restocks there will be an announcement in the news, regardless of what has stocked. Potion restocks are actually quite rare. It's only happened twice since I joined in January, I believe.