Can a magus cast a bouncing spell via spellstrike and what happens if the target saves? Can the magus now redirect the spell to another target within range and, again deliver it via spellstrike?
Since the range of spell delivered by spellstrike is ultimately limited to the creature struck, I would say it wouldn't do anything.
What if you were an eldritch archer?
When using spell-strike the range of the spell is "touch", so I assume you could bounce it onto another target within range of your touch attacks.
On an Eldritch Archer it gets easier.
You could ask this question another way: "What happens when a wizard uses a Bouncong Spell with a range of Touch?"
Bouncing Spell makes the spell affect an “eligible target within range”, so if your range is touch, the new target would have to be within touch range.