After all this, Warner will back in the field as the Caribbean Premier League has confirmed the news of Australian batsman replacing D'Arcy Short in the St. Lucia Stars squad.
The opener was given a nine-month suspension from worldwide and state cricket in March after admitting attempting to alter the condition of the ball during the Newlands Test against South Africa.
Both Smith and Warner are scheduled to make their return to competitive cricket in Canada's inaugural Global T20 tournament.
Bancroft is still contracted to Western Australia and Perth Scorchers and is set to join them for pre-season training in June.
Warner has played in T20 tournaments around the world, but this will be his first appearance in the CPL.
Speaking about the signing of Warner, Stars' General Manager, Mohammad Khan said: "We are excited to bring David to the Saint Lucia Stars".
And with Short called up for Australia A's tour of India in August and September - ruling him out of the Caribbean - Warner will step in for the St Lucia Stars.
He cannot play state and worldwide cricket in Australia but can take part in domestic tournaments overseas. He also has a good captaincy record in the format, having led the Indian Premier League (IPL) side Sunrisers Hyderabad to their maiden IPL title in 2016.
The Stars play their first match on August 8.
Following the Canadian league, Warner, along with Bancroft, will play in Darwin's limited-overs Strike League.
The month-long CPL will also feature other Australians like all-rounder Shane Watson and Chris Lynn.