By that I meant a direct interface between the two programs themselves i.e. Avogadro can’t run ORCA for you. I know that there is cooperation between the teams 
I’m hoping just to gauge expectations, exactly what level of ORCA support is being looked for, since some things are built-in, some require Python, and some things aren’t in scope. I would consider the answer to “Does Avogadro support ORCA?” to be a whole-hearted yes – it’s surely the best supported QM program now? – but it doesn’t work with ORCA the way that GaussView works with Gaussian.