For tasks with sub tasks … show the next step / next sub task on the main line with the task so it’s easy to see the next step on that task 
Hi @Jon_Vickers and welcome to the Forum!
Thank you for sharing your feedback with us! With the new update subtasks are shown right below the task. I believe it is not in our near term plans to modify this but it’s certainly something we can evaluate for future updates.
Please don’t forget to upvote it! Have a great day!