Mercedes team principal Toto Wolff said on Friday it was too early to decide on who will replace Lewis Hamilton from next season but added that currently retired Sebastian Vettel could be a candidate. Wolff only confirmed that they have a shortlist of drivers but added that “we haven’t taken the decision yet and it’s not something that we plan to do in the next few weeks.” Hamilton announced a shock move to Ferrari from next season onwards after winning six of his seven Formula One world titles with Mercedes where he has been driving since 2013. Triple world champion Max Verstappen is Wolff’s …