3rd place without trying too hard. If Honda does plan on using 5 engines, then reliability will be the question mark as they'll likely be pushing the engine hard to compete. They would be on their 3rd power unit and 1st big upgrade around France, or Austria, run that until the summer break, then take on 2 more power units after. Hopefully TR can help the upgrades along, or lead to a breakthrough somewhere.
Honda has been a year behind the others since joining, and tends to surpass the year old units 3/4ths of the way through the season. It took them until Suzuka for their 2016 power unit to surpass the 2015 Ferrari. It took spec 3 to overtake the 2018 Renault which was just a lightly massaged 2017 engine.
At the normal rate of progression Honda will start 2019 with something in the ballpark of the 2018 Mercedes power unit at the beginning of the season. However they have the chance to close that gap this year.
The height of cultivation is really nothing special. It is merely simplicity; the ability to express the utmost with the minimum. Mr.Lee