Yes it will.
The vast majority of my guys learned to fly and built most of their hours (to CPL) in the 7 series, basic taildraggers. When I would transition them over to trikes for their complex requirement it really wasnt a issue, just told them to go to their three point it tailwheel sight picture. I've also check t/w only guys out in 172s, usually 3 touch and goes, read the poh and away they go. The inverse is NEVER true.
I believe the FAA agrees with me on this, before you can solo a t/w you need an endorsement... if your initial solo is in a tailwheel there is no endorsement required to go to trikes., wonder why??!
It helps with rudder skills, it helps with learning to feel the plane, t/w doesnt mask crappy aviators like most trikes do. I have also noticed that teaching someone in a plane w/o flaps, they slip very naturally, toss them into a plane with flaps and it's no biggie, again the inverse isnt true.