12 games will not feel like a long time, the club has also played more than half of the 34 games this season with consistent performances so I don't think Leverkusen will be able to catch up unless Bayern Munich suffer a setback but that won't happen as long as they are still fighting hard with their star players Harry Kane this season has also contributed a lot to the team and he should be rewarded by winning the Bundesliga title.
It won't feel like we're passing each week and we'll soon be at the end of the season and see who will be the champion. Bayern Munich is now in the lead and they are preparing to reclaim something they lost last season. Leverkusen, who are the defending champions this season, have not been able to show the same game as last season, or you could say they have declined. Actually today we can predict who will be the champion this season, but we have to be patient because the remaining matches are still enough to make the situation change very significantly in the standings.
The 8-point advantage has made Bayern Munich's position quite comfortable without any pressure so they face the remaining matches with quite confidence and also we can see how consistent Bayern Munich's performance has been since the beginning of the season so I think it is unlikely that they will experience a setback to lose points in several matches.
For the competition for the Bundesliga title this season it seems to be over, Bayern Munich has the strength and consistency that cannot be matched by other Bundesliga teams including Leverkusen who have declined compared to last season.