Arria V Hard IP for PCI Express Root-point issue

No problem.

If the boards are in the design phase now, there is an Arria V soc as well. (I don't know if it's release yet or not).

The thing to do is look at the pinout requirements between the SOC and the Non-SOC variants. Although Altera is not stating pin compatibility between the two families, you may find you can make it work. (I found it was possible with Cyclone V, but there were limitations)

At the vary least, you should find all the Arria V members in that package, and make sure you don't use pins that would make it impossible to go up/down family members in the same package. Often some pins are NC or defined as extra VCC/GND depending on the family member. (Typically larger part needs more VCC/GND pairs and smaller parts may not have all the IO)

Best of luck in your design.

Pete