We're always looking to replace something with something else - something new, exciting, shiny, better.
Better is both objective and incredibly subjective. Something can be demonstrably better than something else due to quality, features, ease of use or price. But better is also relative and subject to our personal whims and foibles.
All the features in the world won't make a difference if they don't sit well with our way of doing things or experience. New and improved is often a euphemism for "oh no, they've broken it!"
During a couple of conversations with Tim Nahumck it came up about replacing Ulysses with Drafts once the current beta was stable enough but, the way I have been heading, I would actually love to replace Workflow.
Workflow is fantastic and allows you to perform some pretty complex actions with a single tap but being able to do so much natively within Drafts, without relying on anything else, is an absolute joy.
I make no secret of my concern for the future of Workflow post its acquisition by Apple. While I would absolutely welcome the integration of its capabilities in future versions of iOS, I fear any integration will be limited to the most popular tasks leaving those with less common uses high and dry should Apple decide to sunset the app.
As good as it is, frustrations with how it handles code blocks aside, Ulysses is already on thin ice with really only one use case preventing me from dropping it.
The addition of a few extra features to Drafts would mean that I could almost completely replace both Ulysses and Workflow with something subjectively better due to its self-containment.