Lewandowski is getting older but getting sharper in terms of scoring goals, he is the temporary top scorer. If I think he can score 30 goals this season because there are still many matches left in this season. His contribution to Barcelona's front line this season is so great because he contributed goals and assists in helping Barcelona win.
Lewandowski is one of best strikers in history and last two decades, and he is similar to Ibrahimovic with very tall and strong bodies but we witnessed how Ibrahimovic played in his last seasons and how he ended his player career. Lewadowski now is still physically strong enough for playing and more impressively playing very well, but soon he will fail against ageing and physical effects on an old man. No human can fight and win against ageing forever and we can use Cristiano Ronaldo as an example too. He was awared of his issues and decided to leave Europe and join Saudi Professional League.
The matches played by Barcelona in the last 5 matches ended with a very perfect achievement because Hansi Flick's troops always managed to get points. If Barcelona's players are in good condition and are not hit by injuries, I am sure they will be able to maintain their best quality in every match. Osasuna is the next opponent, it is not difficult to beat Osasuna if Barcelona can play well like they did when they beat Real Sociedad.
They woke up and played some good matches to claim a first position back, it's impressive. I thought that Barcelona will fail to get it back with many young players, losing a first position after holding it in many months can be a very big shock for them, but Hansi Flick managed his team well, woke them up and succeeded to climb up to a first position again.
La Liga still has many matches but Barcelona already shown that they are really quality and strong mentally and are ready to win La Liga in this season even with many young players.