I maybe would include a little note: (know you probably can't make it, but was thinking about you and hope your doing well!)
Or something along those lines
I have a similar dilemma, I have people who I want to be invited, but who will 99% not be able to make it because they live out of state.
I'm glad you asked, looking forward to the responses
I would send the invitations, just so they won't feel to left out.
northtamarack:Every family is different. I would ask you MIL or SIL as to what they think should be done.
I agree with this.