Now that's a big "if". And an even bigger if is to get any kind of majority with about 30% of the votes and some additional 10-15% from the Brexit party and DUP. The Tories rose to high 30's after Johnson got elected but are coming crashing down since he humiliated himself in Luxembourg, his failed Prorogation, not being able to win any votes in Parliament...
I do agree that the UK will leave without a Deal - but that's all due to being totally headless right now and no direction has a majority. Not No Deal (Tories and Brexit Party, maybe DUP), not Corbyn and his own version of a deal, not remain (LibDems, SNP, Sinn Fein, Green, Plaid Cymru). And a new election will just make it worse and solve nothing, as both the big parties loose a lot while the smaller ones win quite a bit, making the balance of powers even more even than they were before. So, still headless, still unable to do anything, let alone bring the country forward. It just brings the UK out of the EU since nobody is there to make a deal or get it through parliament since it's so fractured on the theme of Brexit.
All the things the media/political analysts thought hurt Boris actually boosted him.
It's been clear since October that Boris was going to get a huge majority.
Don't Play Stationary 4 ever. Switch!