Who Is/ Are The Remaining Shifters?

After the death of the Progenitor Shifter Ymir Fritz, she is said to have split her soul into nine parts known as the "nine great titans".

This reveal means though, that there can only be maximum of 9 shifters in this series but since Grisha ate Kruger and killed another (Frieda) and soon after was killed by Eren means there can only be 8 right now, they include:


The Marleyans are said to have taken 7 of the 9 shifters during the great titan war leaving the Eldians with 2.

The Eldian titans from Marley;

1.Zeke - Beast Titan
2.Bertoldht - Colossal Titan(Armin)
3.Annie - Female Titan
4.Reiner - Armored Titan
5.Marcel - Dancing Titan(Ymir)

6.Unknown - maybe the quadruple titan?
7.Kruger - The attack titan(Grisha then Eren)

The Eldian Titans from Paradis

8.Frieda(descendant of King Fritz) - Previous owner of the coordinate now belongs to Eren

9.Unknown - One of the two titans that the Eldians left with to Paradis the current owner is unknown


Since Annie is caught, Berthodt's dead and Eren has Kruger's shifter powers the Marleyans have only 4 shifters left;


Zeke
Reiner
Ymir's dancing titan
Unknown - possibly quadruple titan?

While Paradis now has 4 shifters

Armin (Bertolt's shifter powers)
Eren (two shifter powers count for Eren, Frieda's and Kruger's)
Annie
Unknown - One of the two titans that the Eldians left with to Paradis the current owner is unknown


There are some things that don't add up:

Is the quadruple titan a shifter or an intelligent titan considering we haven't seen his human form, since this isn't the first time we've seen a titan talk?

When the Marleyans are said to have won the war and taken seven of the nine Titan powers, was Kruger's power counted among them? Since we've found out he was hiding among them?

And finally who are the unknown shifters, especially the one from Paradis. Since there can be nine Shifters (eight now if we consider that Eren has two), doesn't that mean there are Shifters on both sides we haven't seen yet?