The current work on the ramp is just normal scheduled rehabilitation work. The whole ramp will be done in phases. It's not for the 380.
From the Dublin Airport Authority report at aviationreg.ie..
"15.6.002 Apron Rehabilitation (€ 21m) A significant portion of the airfield apron at Dublin Airport is over 40-years old. Recent structural surveys, as part of the ongoing Pavement Management System, have identified critical parts of the apron that require rehabilitation over the next 5 years. These areas are reaching the end of their useful economic life and need to be replaced to prevent increased opex costs, closure of stands, curtailment of movements and risk of Foreign Object Damage (FOD)."
It also mentions that any A380 stands will be on the old pier at the 300 stands.
No 380 service planned before summer 2017 at the earliest.