This question will be resolved, if Thomas wins a General Classement in a Grand Tour or retires.

The closing date is the end of his new contract with Ineos Grenadiers. I will extend it, if necessary.

The Giro d'Italia, the Tour de France and the Vuelta a Espana are classified, under normal circumstances, as Grand Tours with 21 or 20 stages. For special occasions like a new GT or a shortened GT I will use my best judgement and clearify it in the comments.