It kinda depends how well we can keep it up with ball control and the chances we create, as it is we have enough playmakers and overall passing abillety in our team to really make the most out of our pacey attackers with trough balls, which seems to be a big part of how we score our goals. Both Raz and Sane are great wingers for what we require, they are fast, technical, good at scoring and good in movement. They have the abillety to be at the end of of passes and do something usefull with it and besides that they create space for our passing play trough their movement and the danger they pose. It can be argued that city is playing much better as an overal team now, and i think it also showed with today's game VS Napoli as KDB and Kun wern't exactly top form but the team overall still performed very well against a great team.
Providing we can keep it up, not sure where the limit would be, i think both Sane and raz have loads of class as it is and talent going forward so i could deffinatly see them become world class, but i also think they will find few teams that serve their style so well like city.
Still think Sane really has the exceptional potential abbilety going forward, ronaldo/messi levels even. At this point he seems to have more fun than stress really, playing for a large part on his talent and flair and it looks impressive.