Needless? Yes. Enjoyable? Also, yes.
I'm not entirely sure 'Lady and the Tramp' was a film that needed remaking but here we are. This 2019 production is solid. I like the way it is shot and brought to life. It's rewritten in a few parts, to mostly positive effect - though the original film is still, by a fair distance, best.
I wouldn't say the cast are anything exceptional but they do what's needed. Tessa Thompson and Justin Theroux give good performances as Lady and Tramp respectively, while Adrian Martinez's Elliot is probably the character I'll remember most - away from the two dogs, of course. Janelle Monáe, Sam Elliott and Yvette Nicole Brown are decent too; even if it is difficult to picture the latter as a baddie.
They get rid of the "The Siamese Cat Song", though the replacement tune is actually fairly good. The other songs, like "La La Lu", remain but are obviously tinkered. The run time is longer, which I don't think was nessacary but they fill it well enough.
Solid attempt.