In my opinion no. Bitcoin's nature being decentralized makes it very difficult to be regulated and traced by everyone by considering it, it would be impossible to connect it with mobile numbers. Not to mention, there are already wallets that support different options of withdrawing or converting bitcoins to fiat and connecting it to our mobile number in my opinion is useless or irrelevant. Lastly, this destroys the purpose of bitcoin being untraceable from person-to-person and I speculate that if that happens, prices would probably decrease.