Hi TJ, well for a start we're going to have to up your cookery programs from at least two per week to at least three per week!!!
But at least this is going to mean your wife's home a bit more, which might actually be good timing/give you some comfort.
And knowing how caring you are you'll have a bit of a distraction by focusing a little on her difficulties.
In terms of practicalities nothing to say her parents can't still help out a bit. Perhaps have a kind of a plan based on what she can't do and work from there in what help you might need from them (even if it means them dropping by the odd meal!! ).
And the being looked after by her parents if you weren't there........it's often really good to have loved ones there if we're struggling/we have difficulties so she might really appreciate just having you around regardless of/despite anything else.

Alison