Mixed reality devices that support virtual reality as well as augmented reality have become popular in the recent years. In the following position paper, we address important challenges that arise with these new possibilities. How to realise a seamless transition along the virtuality continuum on the visual level? Especially in immersive analytics, techniques for seamless transitions between VR and AR would greatly increase the visualisation and collaboration possibilities. We will provide an overview of existing literature and an initial pre-selection based on criteria for immersive analytics to open the topic for a joint discussion.