Mind that the E-A7 is not a high-grade arranger, I'd rather get a BK-9 with a discount. An E-A7 following a Tyros 5, I guess this won't result in much joy (and I've been a long-standing Roland supporter).
If you don't need the arranger functions, why not a synth? I would definitely wait for NAMM and Musikmesse in spring.