Reckon he'll get loaned out next season to get match fit and get some proper game time to get back to his best, with a view of probably selling him once he proved his fitness and form.
Not sure Klopp would trust Ings' knees enough to have him as our 3rd choice striker in an important (hopefully) CL season, especially if Sturridge moves on.
You've also got to factor in the amount of game time Ings would get if we were to sign another attacker (who would presumably play more than Sturridge has this season.). Chances are, not much.
Also keep in mind the Uefa squad limit, which might get pretty tight if we add the CB, LB, CM, AM, RW/ST as expected... meaning that there would be 1 place for Klavan/Lucas and 1 between Grujic/Ings most likely...
1. Mignolet
2. Karius
3. Matip
4. Lovren
5. New CB (eg. Van Dijk)
6. Klavan/Lucas
7 New LB (eg. Sessegnon)
8. Can
9. Wijnaldum
10. Grujic/Ings
11. New CM (eg. Keita)
12. Firmino
13. Coutinho
14. New AM (eg. Brandt)
15. Origi
16. Mané
17. New RW/ST
FA trained (minimum of 4)
18. Clyne
19. Milner
20. Henderson
21. Lallana
Club-trained
22. Gomez
23.
24.
25.
List B (unlimited club-trained u21's): Trent, Ejaria, Woodburn, Wilson, etc