This was how I received my copy of Chappie from HMV, but the original copy I ordered from Xtra-Vision was just sent in a standard cardboard mailer and arrived damaged. So no, don't assume that HMV and Xtra-Vision will use the same packaging.
After my experience with Xtra-Vision, I have now pre-ordered all future HMV exclusives from HMV, despite the discounts / lower prices to be had from Xtra-Vision.
Returning my damaged copy of Chappie to Xtra-Vision was a pain. Unlike other online retailers, they do not provide a pre-paid returns label. Instead, I had to pay for the postage up front (at international rates for UK to Dublin), which they then recredited me in the form of an electronic voucher to use on their website! I ended up ordering a title I wanted in a standard Amaray case rather than risk receiving another damaged steelbook.