Global ecommerce domain redirecting to country specific TLD

[Gaadi]

We have a large ecommerce website xyz.com that redirects to xyz.ch. Recently the group expanded to India and they have launched a website called xyz.in. Depending upon the ip address, xyz.com redirects to xyz.in (for Indian audience) and redirects to xyz.ch elsewhere.

Now xyz.in wants to rebrand themselves as xyz.com. To achieve this, we are planning a full-fledged, step-by-step, planned domain migration from xyz.in to xyz.com.

We have two scenarios now.

1. xyz.com will continue to redirect to xyz.ch only in czech republic (depending upon ip)

2. xyz.com will cease to redirect to anywhere else.

Can you advise us on the implications on both the scenarios? What's your best suggestion for us? It's slightly urgent. The management wants to take a quick action. But we want to be very sure about the implications from SEO point of view.