Some promising sidechain projects (using Bitcoin blockchain as a main blockchain) are going on, such as counterparty, blockstream, factom and rootstock.

These projects do not directly use Bitcoin, but use own currencies that are pegged with Bitcoin. I am wondering if any of these projects achieves a great success and becomes a global company, how it affects the price of Bitcoin.

Will it have a small indirect effect on the price of Bitcoin or large direct effect on the price of Bitcoin?

It would be appreciate if you would be able to give a basis of your prediction (rather than saying "Bitcoin price will be sky high (or will be 40k)" without mentioning rational reasons).

Any comments on this topic are also welcome.