The main reason of bitcoin Tx volume increase is not more bitcoin usage. The main reason is more & more apps are implementing the 1 address per Tx policy and as it employs forwarding of the balance to the main address, the overall Tx volume is increasing. Moreover, some online wallets are spreading cold wallet balance on multiple addresses. That is another reason of Tx volume increase.
Unless these wallet providers are spreading their cold storage around every day it wouldn't have an effect on the daily tx volume.