If we had the ability to reanimate 1,000 people from ancient Egypt, it seems highly plausible the resources could be found to do it. These people would be a font of information from a long forgotten past. The only question is whether they could adjust to the present.

So if preserved people from the past survived long enough, it seems like historical interest could motivate people to re-animate them. There may be other motivations but that's one.

Maybe only a small selection would be reanimated at any one time. But that might others to revived later.

Well, one objection could be that much of the information about the ancient civilizations has been lost, whereas it is highly improbable that a person could add anything to the knowledge about the modern world to a future historian or a linguist.

Maybe but it's pretty common for much knowledge of even the recent past to be lost and it seems plausible that even a detailed selection of texts couldn't give the experience that someone who was there could give.

Presumably they can be paid to do so from the same fund whose interest is being used to keep the bodies frozen.

Diversity of thought, novelty. In the same way it never gets old to watch a child experience "I am your father!" for the first time, I'm sure humans of the future will enjoy entertaining humans of the past.