Unless the casing is those proprietary mini system or all-in-one casing. Acer SFF/mATX casing can fit any SFF/mATX motherboard without the need to change it.
The only technical valid reason to change the casing is the lack of front USB 3 ports for newer USB3.0 motherboard, other than that, the casing should works with any DIY motherboard of the same platform.