I've spent the last 6 months creating my template for Premiere Pro.  I've gathered music, video, photos, and sound effects and created the file structure of the template and have written down the workflow, in general at the moment, with more detail coming soon.  Now I'm working on templates for specific portions of my YouTube videos for my channel and deciding on the look I want it to have, plus the look of the titles and lower thirds, and the transitions.  I think my biggest worry is going overboard.  I want to use particle effects, transparency, and light effects - so I'm probably going to be using After Effects.  

I want my YouTube videos to make the viewer feel good and look forward to my next video, and feel expanded and inspired.  I'm not sure how I'm going to deal with LUTs yet, but I know color grading is going to be important to me.  My guess is that the music and LUTs will pull things together into a cohesive unit.  

This is a brand new YouTube channel, and I'm really looking forward to creating the best template that I can so that I can quickly and easily create videos for frequent posting.  So, yes, a well-defined template and workflow is very important to me... before I even start to create videos.  Once I start, I won't have time to create videos from scratch, the template is a must.   

Plus, you should be able to look at any of my videos and realize that you know the channel that the video came from, because of the template, and yet still be a bit surprised and amazed at each individual video.  

As far as on-going, I'm using Clickup to handle project management of the YouTube channel.  I chose it above Asana and others because I can make it do more and it is inexpensive.  It will especially be helpful once I have the money to hire others.