that's about what we should expect. maybe if the planets are aligned and we meditate and align our Chakras to the universe (this part is obviously a joke) .....maybe he can develop into a 2nd line player with the right complimentary players. But a 3rd line of AL - Eller - Carr looks really good on paper.
Based on what you describe here, I don't see what more he brings than Andrighetto or Carr. So like I said, I don't see the urge of bringing him to North America.
If you tell me that him playing on the third line will make one of Carr or Andrighetto play in the top 6, then Habs are in for another long season.