Liverpool has't stopped yet. They're trying to hunt more talent to be recruited. They have done with Frimpong, Wirtz (medical check up), Kerkez, (still in the negotiation), and add Isaak as their last target. Their target to sign Isaak from Newcastle is just getting even more possible with Nunez who is still in the process to go to the Napoli(i expect him to play for that italian club).
I think we will see Isaak to wear Liverpool's jersey as he has open the move to the any big club that play in UCL.
Very quiet but deadly, I so much admire Isaak as a good player that actually deserves to be in a better team than Newcastle. If teams like Liverpool, Manchester City or even big teams like Real Madrid, Barcelona, Bayern Munich, PSG can have him in their ranks, he will be a very good asset to these teams. But I know that most of these teams already has strikers but I was just saying if they had him because his proven to be a prolific striker.
Those big clubs already have strikers except Liverpool. I don't count Nunez because of his terrible performance. Only happy with how Napoli is seriously approaching him at this moment. So Liverpool can sell him to the Napoli, then use his money to fund Isaak's transfer. The possibility is still there.