I don't think Samsunspor will continue like this until the end, but I know they are playing very well, if they really continue to play like this, they can be in the top 4.
The problem with Anatolian clubs is instability, if there was stability, they could easily find themselves in the upper ranks of the league.
Fenerbahçe's next opponent is Samsunspor, this match is very important for both teams.
After having promotion in 2023 Samsunspor having 13th spot with 11 wins and 43 points which is normal for any team which have promotion but in this season they are giving much better and having 6 wins from their 8 games, and they are currently at the second spot as they Besiktas and Fenerbahçe both are had one match in hand, but their quality is good which can give them good chance of having better spot in this season but as you mentioned they need consistency which is important for the clubs if they want to have good end of their season.
Next game against Fenerbahçe is important as both teams are looking for win and most chances Fenerbahçe can handle them better with their strong squad and much better quality which is surely still having chance of staying into top two spots in this season while recently they face problematic results which are not good.