Additionally, DVDs will still be released for older titles of which no Blu-ray materials exist.
“As part of a DVD-to-Blu-ray (#DVD2BD) promotion, Sentai Filmworks is offering a complementary Blu-ray player during this promotion to customers who purchase $299 worth of products from their online store at sentaifilmworks.com from September 18, 2017 through September 30, 2017.”
In an announcement that really feels like it should have been coming earlier from the anime side of things, Sentai Filmworks has revealed their plan to gradually phase out production of DVDs and are doing it with some incentives.