Marseille is 6 points behind from second placed Lens in the points table and only 1 point behind from Rennes. Closing this point gap should not be too difficult if Marseille is able to perform consistently well. However, it will not be easy to occupy second place in the table. Lens has been performing very well this season. Lens has been defeated in just one match. I think Lens and Marseille will fight for second place in the table. But it is difficult to predict how the teams will perform after the World Cup. We should wait, and make predictions about the teams by seeing their performance after the World Cup.
Marseille is second-best club in French League, and mostly they are having spot behind leaders PSG in last few seasons but in current season we have some amazing performances from few clubs like Lorient and Lens with Rennes is also doing good but right now Lorient is slipping badly with having no win in last five matches but Lens and Rennes are still doing amazing job which is surely going to be tough challenge for Marseille because now if they want to stay at top then surely they have to improve their performance and quality which is not easy with Monaco is also doing good even in last game they lost against Marseille at home but still they are also good and quality team in French League which is capable of having good position.
If Marseille can do better and at the same time Lens has good consistency too, then Marseille will still find it difficult to keep close to overtaking second place. But indeed, even though there is a fairly wide point gap like for example 10 can still be pursued, but with the note that the team above it cannot maintain consistency.
What's more, Marseille and Lens only have a six-point gap which, of course, is a point gap that on paper can still be overtaken.
However, this is the third season for Lens playing in Ligue 1, and I think it's too soon for Lens to finish in second place. Because in the previous two seasons Lens had only been able to end the league in seventh place in the standings, and of course that was good consistency for Lens as a promotion team.
But with such consistency, it's still quite possible for Lens to be able to achieve a better position this season, such as for the top five and not in second place.
But if Lens really can end the season in second place, then of course it is a big achievement for them which is achieved in a fairly short time too.