Moving toward Lightning Adoption: Salesforce Classic "end of life"?
- Official slowing or stoppage of new Salesforce Classic platform upgrades and enhancements
- Specific info indicating Company's formal strategy to abandon Classic and migrate all instances to Lightning only.
I think Jeff has covered the what is Salesforce's plan with Classic part of the question.
I have a few thoughts about the adoption strategy bit. Moving to Lightning, for the reasons that you yourself might question sometimes, at the end of the day is a change. Your users are also making a valid point because, if ain't broke why fix it right? So, sometimes you can foresee the responses your users have to any change you may implement.
The functions and workflows of your users aren't changing but the way your users will be doing them is changing. They know what they need to do but can't find the relevant tab or navigate through the workflow. The admins at these enterprises noticed the point at which their users are feeling lost and created a walkthrough to guide them.
When you do rollout LEX, or if you already have and need to train people on it, one suggestion I would give for helping with the adoption is contextual training that takes them through the steps in the live environment of Salesforce. This will tell them where exactly they need to go to find what they're looking for. They’ll essentially be learning while actually doing their job. Since it’s real time training, they don’t have to switch back and forth between any documentation/video to learn the workflow. Additionally, once you create these step-by-step walkthroughs, they are auto-converted to downloadable videos, PDFs, slideshows that you can share with them.
They can also always revisit these walkthroughs whenever they’re stuck. This would ensure that they aren’t losing any time trying to figure out/remember what some video/documentation said but instead nudges them in the right direction making them more productive. If this is something that sounds interesting to you, give Whatfix (https://goo.gl/GXzTxT) a try.
Hope this helps!