In stark contrast to the previous two years, dominated by existential fears raised by the Greek debt crisis, migrants crossing the Mediterranean in the hundreds of thousands, and Britain's 2016 Brexit vote, officials said Juncker wants the European Union to seize a window of opportunity to strengthen its integration.
In his annual State of the Union address to the European Parliament, Juncker said the troubled bloc had become more united in the past 12 months and stressed that economic momentum was picking up.
But his call for increased cooperation will be balanced with the need to heal a deepening split with eastern European countries that resist any move to further integration. The expected positive change of tone by Juncker as he addresses the 750 MEPs will be dramatic compared to past year when a string of crises from the debt in the eurozone to migration culminated in the the Brexit quake.
According to the UK Secretary of State for Exiting the European Union David Davis, the parties have managed to achieve "concrete progress", while European Commission's chief negotiator Michel Barnier stated skepticism, saying there was no decisive progress on any of the principal subjects.
Guy Verhofstadt, Brexit coordinator for the European Parliament, told The Independent that there can not be a "trade-off" using security.
He also issued a warning to Britian, which is now slowly progressing with exit negotiations, saying that "we will always regret this, and I think you will regret this too, soon".
During his defiant speech, Juncker demanded the bloc's enlargement to the east and the adoption of the euro by every European Union country.
Another source from the European Union said "the days of gunboat diplomacy are over" as they warned the United Kingdom against the tactic.
He repeated a call to create a post for a eurozone finance minister, but added that the post could be filled by an existing commissioner. After Japan on the trade front, Australia, New Zealand and South America are next in Brussels' sights for rapid new agreements.
However, delaying the Brussels talks may make it easier for the prime minister to get her message over without distraction.
Meanwhile, Italy has handled an influx of migrants and refugees.
Time is running out for Juncker's plans, with 2018 being the last full year of his mandate.