Due to the timing of the tweet, there is speculation that this is DeLonge's response to Matt Skiba claiming that Blink-182 "feels like home" on the latest episode of Mark Hoppus' podcast, which went live yesterday evening as well.
Anyway, it looks like Tom will be releasing an album called To The Stars, an effort expected to contain new Blink 182 demos, "along with a few extra tracks", on April 20th.
Two more tracks are to be released before the album's official debut, releasing on March 23rd, and April 6th. No other details have been released on the other records that DeLonge claims he will be putting out.
I am putting out 4 albums in one year- this year.— Tom DeLonge (@tomdelonge) March 18, 2015