No. Outfunnel works with a single Mailchimp and CRM (Pipedrive, Hubspot, or Copper) account.
That said, it is possible to replace the existing account with a new one by navigating to account settings and clicking on “Reconnect”.
PS. Before reconnecting, make sure you are logged in with the new Mailchimp, Pipedrive, Hubspot, or Copper account you want to connect.