I think our current style would suit prime Eriksen just fine. He'd play Ndombele's role and do it better. He scored so many long range bangers, was good getting in the box, so would have been a perfect third goal scorer. He was practically a guaranteed 20+ g/a a season.
He used to have an engine on him and was always tracking back on counters, though he was a bit of a traffic cone when he got there.
Most of all, he was amazing at launching a quick long range ball.
Prime Eriksen in this team would have been amazing in this team.
The only issue is that he clearly wasn't mentally very strong.