Those would remain the same factors. Marketing makes the altcoin gain more exposure and it than creates higher demand for the altcoin which would boost it's price. Market making would similarly grow the price for altcoins by expanding the demand.

Technology is behind the development of altcoin and it would always allow us to generate newer and advanced altcoins for the betterment of the community and it would keep on boosting the price for those. Cryptocurrency markets depend on the demand and supply factor as well know and it always derives the price for them above if the demand is higher. We could see the similar in the bull and bear markets.