IMO the situation is a little bit different compared to last year, but I cannot say 100% of either "Yes" or "No" at the moment. Here are something I have observed.
1. The "mobile only" restriction is not stated officially. What the J.League official website have officially announced was something like "Konami will implement J.League content in game using mobile phone", but have never say it was only available to mobile phones for Konami. This kind of annoucement will only be released before a new J.League season, and the content of announcement will just be related to "sponsorship" but not "license".
2. Konami had invested a lot in "Esports" stuff this year. Besides "eFootball", they also have announced "eBASEBALL" which involve the teams in Japanese baseball leagues. They have also invested in a place in Ginza, Tokyo. If they want to make it well, I think they will want to invest in J.League again.
3. J1 League has been licensed in FIFA since FIFA 17, for 3 years. It is a common length of a licensing contract as I observed. (e.g. UEFA & Konami with 2015–18, UEFA & EA with 2018–21, Liverpool & Konami with 2016–19)
4. Meanwhile, EA have just shuted down their offices in Tokyo and Moscow in March 2019. It is happened after Russia Premier Liga being exclusive to PES. I guess their is a chance that J.League may be the same.
5. In June 2019, Konami has released another game with J.League. The game is not named as Winning Eleven in Japanese, but it have used a Winning Eleven hash tag.
6. Jonas Lygaard has been tweeting about #JL recently, although it may just be trolling.