I'd like to start by asking how much of Yoshin ryu jujutsu is still taught within the Wado ryu curriculum?
The exact curriculum will vary depending on group (WIKF, JKF and Wado-ryu Renmei) and indeed associations/dojo within said groups.
But typically, as well as our Shotokan like (or at least to the layman) Kihon-waza (done in lines up and down the dojo), we have (usually) 15 solo kata and paired exercises / kata as follows:
Ippon / Sanbon Kumite
Ohyo Kumite
Kihon Kumite
Kumite Gata
Idori
Tanto-dori
Tachi-dori
[edit] it should be noted that not all groups practice all of these pairwork / kata - however all typically practice Kihon Kumite as a base line.
As far as I understand, Yoshin-ryu jujutsu (or at least the line founded by Yoshitoki Akiyama) is an extinct ryu-ha (I think the only surviving element is the Naginata-jutsu?) - so it is very difficult to answer your question directly.
If however we look at two of Yoshin ryu's descendant arts - namely Shindo Yoshin-ryu and Tenjin Shinyo-ryu, there are very similar techniques that can be found in Wado's Kihon Kumite, Idori and Tanto-dori kata. In fact some are virtually identical.
Its also interesting to note that all Wado paired kata (even ones that do not have a direct counterpart) share the same principles (kuzushi, noru, irimi, nagasu etc.)
Does it still contain two person kumitachi? I ask this since these were the basis of most koryu systems, and I'm wondering how much of the koryu training methodology was retained when Wado ryu was created.
Short answer to that is no - or at least not seriously practiced within any of the major groups that I am aware of.
As I mentioned above, we do have Tanto-dori (but to be fair this isn't practiced widely).
The Wado Idori "suggests" of course that both parties have a bladed weapon however it is practiced without.