I wouldn’t be surprised if the 360s (and 170s & 158s too for that matter) aren’t refurbished at all. There are two possible reasons why: firstly, the DfT continue their penny-pinching attitude towards the East Midlands; or secondly, maybe Abellio have realised that they’re failing so badly that they don’t stand a chance of retaining the management contract and hence there’s no incentive to do anything with the rolling stock before the inevitable happens and they get kicked out.
Personally, I think Abellio needs stripping of the management contact and the East Midlands comes under the OLR until PSOs/GBR come to fruition. There also needs to be a promise of new Connect trains to an IC level of comfort* which can interchange with Intercity diagrams once the MML is fully electrified (if extra IC capacity is needed for whatever reason). The 360s can operate as an interim solution with a much lighter refurbishment consisting of a deep clean and restoring the seats to an acceptable condition (as opposed to stripping them out and reconfiguring the layout to 2+2). A few years pain for eventual gain.
* before anybody says anything, I know that new Connect trains is wishful thinking. At least if Abellio were kicked out for incompetence, the DfT would demonstrate that it cares about the East Midlands for once.