If he does well in preseason, I see him getting the same treatment that Sterling got last year.
The odds on him getting anywhere near the same amount of playing time as Sterling did last season are extremely remote. Both himself and Sterling are extremely unlikely to get near the same amount of playing time he got last season (even with Sterling's injury in the end part of the season)
For all Sterling and Suso's talent a key reason they picked up such an amount of playing time was the rag order of the squad especially in the first half of the season.
That's even before you look at the reduction of playing time due to the lack of European action (12 games less than last season)
The main reason Sterling & Suso picked up such an amount of playing time was the lack of other options. Their competition in wide areas were Downing, Assaidi, Pacheco. Of those neither Assaidi or Pacheco were rated by Rodgers. We had times in the first half of the season where we had Henderson, Shelvey and even Enrique playing the wide positions in the front three. We didnt have the option of Suarez playing in a wide area as we had no other striker with Borini out injured.
Since Sterling and Suso picked up the bulk of his playing time we have added three extremely strong forward options to the squad - Coutinho, Sturridge & Aspas with indications more will be arriving {Mkhitaryan + Alberto}. Throw in Borini returning to fitness. [Some may say that Suso is not competing with Sturridge for a place for if Suarez and Sturridge are playing it has a knock on of his chances of playing]
Basically the odds are that the squad will be in much stronger shape this season compared to last season and they will be most likely less games to play with no European action.
Suso played 916 minutes for the first team last season (just over the equivalent of 10 full games) [He also played 8 full games for the reserves] They odds are unlikely he will manage the equivalent of 10 full games for the first team this season (any reserve games he plays do little to nothing for his development at this stage ) Makes far more sense to go on loan somewhere and rack up a lot more competitive action. After a season on loan where he picks up serious playing time he would be in a far stronger position to seriously challenge for a first-team place as opposed to being a fringe player.
Sterling picked up 2219 minutes (equivalent of 24.7 full games) this season and there's probably an argument for sending him on loan but I would counter that 1) he offers a serious threat as a sub late on in games and 2) if he goes on loan there is no chance to actively manage his playing time (pretty much any club he goes on loan to would probably play him 100% of the time and not give a fig about burning him out/his long-term development) I don't think there is quite the same risk with Suso as he is more physically developed as he is more than a year old than Sterling and his game is based on different attributes.
However overall I think it would be a serious mistake not to send Suso on loan this season. I'm hoping that when he turns up for pre-season Rodgers will sit him down and go "Suso we have a squad where the attacking options are Suarez, Sturridge, Borini, Coutinho, Mkhitaryan, Gerrard, Shelvey, Sterling, Downing & Alberto. {and that's assuming Carroll, Assaidi and Pacheco have moved on} we think you have a lot of potential but we've no European action and we are going to be taking the cups more seriously this season. Go on loan for the season, make 35+ appearances and come back and seriously challenge for a place . Also make sure to keep working on your weaker leg"